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badkaktus 2019-10-14 23:18:33 +03:00
parent 2634a9ca4b
commit 02a7051563
146 changed files with 215 additions and 5470 deletions
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examples.txt
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Hello World
Типы данных (Values)
Переменные (Variables)
Константы (Constants)
Цикл For
If/Else
Switch
Массивы (Arrays)
Срезы (Slices)
Карты (Maps)
Ряд (Range)
Функции (Functions)
Функции с множественным возвратом (Multiple Return Values)
Функции с переменным числом аргументов (Variadic Functions)
Замыкания (Closures)
Рекурсия (Recursion)
Указатели (Pointers)
Структуры (Structs)
Методы (Methods)
Интерфейсы (Interfaces)
Ошибки (Errors)
Горутины (Goroutines)
Каналы (Channels)
Буферизированный канал (Channel Buffering)
Синхронизация канала (Channel Synchronization)
Направления канала (Channel Directions)
Select
Тайм-ауты (Timeouts)
Неблокируемые операции в каналах (Non-Blocking Channel Operations)
Закрытие каналов (Closing Channels)
Перебор значений из каналов (Range over Channels)
Таймеры (Timers)
Тикеры (повторения) (Tickers)
Пулы воркеров (Worker Pools)
WaitGroups
Ограничение скорости (Rate Limiting)
Атомарные счетчики (Atomic Counters)
Мьютексы (Mutexes)
Управление состоянием горутин (Stateful Goroutines)
Сортировка (Sorting)
Сортировка через функции (Sorting by Functions)
Panic
Defer
Функции коллекции (Collection Functions)
Строковые функции (String Functions)
Форматирование строк (String Formatting)
Регулярные выражения (Regular Expressions)
JSON
XML
Время (Time)
Epoch
Форматирование времени (Time Formatting / Parsing)
Случайные числа (Random Numbers)
Парсинг чисел (Number Parsing)
Парсинг URL (URL Parsing)
Хеш SHA1 (SHA1 Hashes)
Кодирование Base64 (Base64 Encoding)
Чтение файлов (Reading Files)
Запись файлов (Writing Files)
Строковые фильтры (Line Filters)
Пути к файлам (File Paths)
Директории (Directories)
Временные файлы и директории (Temporary Files and Directories)
Тестирование (Testing)
Аргументы командной строки (Command-Line Arguments)
Флаги командной строки (Command-Line Flags)
Подкоманды командной строки (Command-Line Subcommands)
Переменные среды (Environment Variables)
HTTP клиенты (HTTP Clients)
HTTP серверы (HTTP Servers)
Порождающие процессы (Spawning Processes)
Исполняющие процессы (Exec'ing Processes)
Сигналы (Signals)
Выход (Exit)
Hello World|Hello World
Типы данных (Values)|Values
Переменные (Variables)|Variables
Константы (Constants)|Constants
Цикл For|For
If/Else|If/Else
Switch|Switch
Массивы (Arrays)|Arrays
Срезы (Slices)|Slices
Карты (Maps)|Maps
Ряд (Range)|Range
Функции (Functions)|Functions
Функции с множественным возвратом (Multiple Return Values)|Multiple Return Values
Функции с переменным числом аргументов (Variadic Functions)|Variadic Functions
Замыкания (Closures)|Closures
Рекурсия (Recursion)|Recursion
Указатели (Pointers)|Pointers
Структуры (Structs)|Structs
Методы (Methods)|Methods
Интерфейсы (Interfaces)|Interfaces
Ошибки (Errors)|Errors
Горутины (Goroutines)|Goroutines
Каналы (Channels)|Channels
Буферизированный канал (Channel Buffering)|Channel Buffering
Синхронизация канала (Channel Synchronization)|Channel Synchronization
Направления канала (Channel Directions)|Channel Directions
Select|Select
Тайм-ауты (Timeouts)|Timeouts
Неблокируемые операции в каналах (Non-Blocking Channel Operations)|Non-Blocking Channel Operations
Закрытие каналов (Closing Channels)|Closing Channels
Перебор значений из каналов (Range over Channels)|Range over Channels
Таймеры (Timers)|Timers
Тикеры (повторения) (Tickers)|Tickers
Пулы воркеров (Worker Pools)|Worker Pools
WaitGroups|WaitGroups
Ограничение скорости (Rate Limiting)|Rate Limiting
Атомарные счетчики (Atomic Counters)|Atomic Counters
Мьютексы (Mutexes)|Mutexes
Управление состоянием горутин (Stateful Goroutines)|Stateful Goroutines
Сортировка (Sorting)|Sorting
Сортировка через функции (Sorting by Functions)|Sorting by Functions
Panic|Panic
Defer|Defer
Функции коллекции (Collection Functions)|Collection Functions
Строковые функции (String Functions)|String Functions
Форматирование строк (String Formatting)|String Formatting
Регулярные выражения (Regular Expressions)|Regular Expressions
JSON|JSON
XML|XML
Время (Time)|Time
Epoch|Epoch
Форматирование времени (Time Formatting / Parsing)|Time Formatting / Parsing
Случайные числа (Random Numbers)|Random Numbers
Парсинг чисел (Number Parsing)|Number Parsing
Парсинг URL (URL Parsing)|URL Parsing
Хеш SHA1 (SHA1 Hashes)|SHA1 Hashes
Кодирование Base64 (Base64 Encoding)|Base64 Encoding
Чтение файлов (Reading Files)|Reading Files
Запись файлов (Writing Files)|Writing Files
Строковые фильтры (Line Filters)|Line Filters
Пути к файлам (File Paths)|File Paths
Директории (Directories)|Directories
Временные файлы и директории (Temporary Files and Directories)|Temporary Files and Directories
Тестирование (Testing)|Testing
Аргументы командной строки (Command-Line Arguments)|Command-Line Arguments
Флаги командной строки (Command-Line Flags)|Command-Line Flags
Подкоманды командной строки (Command-Line Subcommands)|Command-Line Subcommands
Переменные среды (Environment Variables)|Environment Variables
HTTP клиенты (HTTP Clients)|HTTP Clients
HTTP серверы (HTTP Servers)|HTTP Servers
Порождающие процессы (Spawning Processes)|Spawning Processes
Исполняющие процессы (Exec'ing Processes)|Exec'ing Processes
Сигналы (Signals)|Signals
Выход (Exit)|Exit

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<!DOCTYPE html>
<html>
<head>
<meta http-eqiv="content-type" content="text/html;charset=utf-8">
<title>Go by Example: Not Found</title>
<link rel=stylesheet href="site.css">
</head>
<body>
<div id="intro">
<h2><a href="./">Go by Example</a></h2>
<p>Sorry, we couldn't find that! Check out the <a href="./">home page</a>?</p>
<p class="footer">
by <a href="https://twitter.com/mmcgrana">@mmcgrana</a> | <a href="mailto:mmcgrana@gmail.com">feedback</a> | <a href="https://github.com/mmcgrana/gobyexample">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
</p>
</div>
</body>
</html>

41
public/arrays generated
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@ -1,41 +0,0 @@
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Go в примерах: Массивы (Arrays)</title>
<link rel=stylesheet href="site.css">
</head>
<script>
onkeydown = (e) => {
if (e.key == "ArrowLeft") {
window.location.href = 'switch';
}
if (e.key == "ArrowRight") {
window.location.href = 'slices';
}
}
</script>
<body>
<div class="example" id="arrays">
<h2><a href="./">Go в примерах</a>: Массивы (Arrays)</h2>
<p class="next">
Следующий пример: <a href="slices">Срезы (Slices)</a>.
</p>
<p class="footer">
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/arrays">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
</p>
</div>
<script>
var codeLines = [];
</script>
<script src="site.js" async></script>
</body>
</html>

41
public/atomic-counters generated
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@ -1,41 +0,0 @@
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Go в примерах: Атомарные счетчики (Atomic Counters)</title>
<link rel=stylesheet href="site.css">
</head>
<script>
onkeydown = (e) => {
if (e.key == "ArrowLeft") {
window.location.href = 'rate-limiting';
}
if (e.key == "ArrowRight") {
window.location.href = 'mutexes';
}
}
</script>
<body>
<div class="example" id="atomic-counters">
<h2><a href="./">Go в примерах</a>: Атомарные счетчики (Atomic Counters)</h2>
<p class="next">
Следующий пример: <a href="mutexes">Мьютексы (Mutexes)</a>.
</p>
<p class="footer">
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/atomic-counters">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
</p>
</div>
<script>
var codeLines = [];
</script>
<script src="site.js" async></script>
</body>
</html>

41
public/base64 generated
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@ -1,41 +0,0 @@
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Go в примерах: Кодирование Base64 (Base64 Encoding)</title>
<link rel=stylesheet href="site.css">
</head>
<script>
onkeydown = (e) => {
if (e.key == "ArrowLeft") {
window.location.href = 'sha1';
}
if (e.key == "ArrowRight") {
window.location.href = 'reading-files';
}
}
</script>
<body>
<div class="example" id="base64">
<h2><a href="./">Go в примерах</a>: Кодирование Base64 (Base64 Encoding)</h2>
<p class="next">
Следующий пример: <a href="reading-files">Чтение файлов (Reading Files)</a>.
</p>
<p class="footer">
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/base64">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
</p>
</div>
<script>
var codeLines = [];
</script>
<script src="site.js" async></script>
</body>
</html>

41
public/channel-buffering generated
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Go в примерах: Буферизированный канал (Channel Buffering)</title>
<link rel=stylesheet href="site.css">
</head>
<script>
onkeydown = (e) => {
if (e.key == "ArrowLeft") {
window.location.href = 'channels';
}
if (e.key == "ArrowRight") {
window.location.href = 'channel-synchronization';
}
}
</script>
<body>
<div class="example" id="channel-buffering">
<h2><a href="./">Go в примерах</a>: Буферизированный канал (Channel Buffering)</h2>
<p class="next">
Следующий пример: <a href="channel-synchronization">Синхронизация канала (Channel Synchronization)</a>.
</p>
<p class="footer">
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/channel-buffering">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
</p>
</div>
<script>
var codeLines = [];
</script>
<script src="site.js" async></script>
</body>
</html>

41
public/channel-directions generated
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Go в примерах: Направления канала (Channel Directions)</title>
<link rel=stylesheet href="site.css">
</head>
<script>
onkeydown = (e) => {
if (e.key == "ArrowLeft") {
window.location.href = 'channel-synchronization';
}
if (e.key == "ArrowRight") {
window.location.href = 'select';
}
}
</script>
<body>
<div class="example" id="channel-directions">
<h2><a href="./">Go в примерах</a>: Направления канала (Channel Directions)</h2>
<p class="next">
Следующий пример: <a href="select">Select</a>.
</p>
<p class="footer">
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/channel-directions">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
</p>
</div>
<script>
var codeLines = [];
</script>
<script src="site.js" async></script>
</body>
</html>

41
public/channel-synchronization generated
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Go в примерах: Синхронизация канала (Channel Synchronization)</title>
<link rel=stylesheet href="site.css">
</head>
<script>
onkeydown = (e) => {
if (e.key == "ArrowLeft") {
window.location.href = 'channel-buffering';
}
if (e.key == "ArrowRight") {
window.location.href = 'channel-directions';
}
}
</script>
<body>
<div class="example" id="channel-synchronization">
<h2><a href="./">Go в примерах</a>: Синхронизация канала (Channel Synchronization)</h2>
<p class="next">
Следующий пример: <a href="channel-directions">Направления канала (Channel Directions)</a>.
</p>
<p class="footer">
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/channel-synchronization">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
</p>
</div>
<script>
var codeLines = [];
</script>
<script src="site.js" async></script>
</body>
</html>

41
public/channels generated
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@ -1,41 +0,0 @@
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Go в примерах: Каналы (Channels)</title>
<link rel=stylesheet href="site.css">
</head>
<script>
onkeydown = (e) => {
if (e.key == "ArrowLeft") {
window.location.href = 'goroutines';
}
if (e.key == "ArrowRight") {
window.location.href = 'channel-buffering';
}
}
</script>
<body>
<div class="example" id="channels">
<h2><a href="./">Go в примерах</a>: Каналы (Channels)</h2>
<p class="next">
Следующий пример: <a href="channel-buffering">Буферизированный канал (Channel Buffering)</a>.
</p>
<p class="footer">
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/channels">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
</p>
</div>
<script>
var codeLines = [];
</script>
<script src="site.js" async></script>
</body>
</html>

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41
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Go в примерах: Закрытие каналов (Closing Channels)</title>
<link rel=stylesheet href="site.css">
</head>
<script>
onkeydown = (e) => {
if (e.key == "ArrowLeft") {
window.location.href = 'non-blocking-channel-operations';
}
if (e.key == "ArrowRight") {
window.location.href = 'range-over-channels';
}
}
</script>
<body>
<div class="example" id="closing-channels">
<h2><a href="./">Go в примерах</a>: Закрытие каналов (Closing Channels)</h2>
<p class="next">
Следующий пример: <a href="range-over-channels">Перебор значений из каналов (Range over Channels)</a>.
</p>
<p class="footer">
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/closing-channels">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
</p>
</div>
<script>
var codeLines = [];
</script>
<script src="site.js" async></script>
</body>
</html>

41
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Go в примерах: Замыкания (Closures)</title>
<link rel=stylesheet href="site.css">
</head>
<script>
onkeydown = (e) => {
if (e.key == "ArrowLeft") {
window.location.href = 'variadic-functions';
}
if (e.key == "ArrowRight") {
window.location.href = 'recursion';
}
}
</script>
<body>
<div class="example" id="closures">
<h2><a href="./">Go в примерах</a>: Замыкания (Closures)</h2>
<p class="next">
Следующий пример: <a href="recursion">Рекурсия (Recursion)</a>.
</p>
<p class="footer">
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/closures">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
</p>
</div>
<script>
var codeLines = [];
</script>
<script src="site.js" async></script>
</body>
</html>

41
public/collection-functions generated
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Go в примерах: Функции коллекции (Collection Functions)</title>
<link rel=stylesheet href="site.css">
</head>
<script>
onkeydown = (e) => {
if (e.key == "ArrowLeft") {
window.location.href = 'defer';
}
if (e.key == "ArrowRight") {
window.location.href = 'string-functions';
}
}
</script>
<body>
<div class="example" id="collection-functions">
<h2><a href="./">Go в примерах</a>: Функции коллекции (Collection Functions)</h2>
<p class="next">
Следующий пример: <a href="string-functions">Строковые функции (String Functions)</a>.
</p>
<p class="footer">
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/collection-functions">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
</p>
</div>
<script>
var codeLines = [];
</script>
<script src="site.js" async></script>
</body>
</html>

41
public/command-line-arguments generated
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Go в примерах: Аргументы командной строки (Command-Line Arguments)</title>
<link rel=stylesheet href="site.css">
</head>
<script>
onkeydown = (e) => {
if (e.key == "ArrowLeft") {
window.location.href = 'testing';
}
if (e.key == "ArrowRight") {
window.location.href = 'command-line-flags';
}
}
</script>
<body>
<div class="example" id="command-line-arguments">
<h2><a href="./">Go в примерах</a>: Аргументы командной строки (Command-Line Arguments)</h2>
<p class="next">
Следующий пример: <a href="command-line-flags">Флаги командной строки (Command-Line Flags)</a>.
</p>
<p class="footer">
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/command-line-arguments">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
</p>
</div>
<script>
var codeLines = [];
</script>
<script src="site.js" async></script>
</body>
</html>

41
public/command-line-flags generated
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@ -1,41 +0,0 @@
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Go в примерах: Флаги командной строки (Command-Line Flags)</title>
<link rel=stylesheet href="site.css">
</head>
<script>
onkeydown = (e) => {
if (e.key == "ArrowLeft") {
window.location.href = 'command-line-arguments';
}
if (e.key == "ArrowRight") {
window.location.href = 'command-line-subcommands';
}
}
</script>
<body>
<div class="example" id="command-line-flags">
<h2><a href="./">Go в примерах</a>: Флаги командной строки (Command-Line Flags)</h2>
<p class="next">
Следующий пример: <a href="command-line-subcommands">Подкоманды командной строки (Command-Line Subcommands)</a>.
</p>
<p class="footer">
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/command-line-flags">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
</p>
</div>
<script>
var codeLines = [];
</script>
<script src="site.js" async></script>
</body>
</html>

41
public/command-line-subcommands generated
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Go в примерах: Подкоманды командной строки (Command-Line Subcommands)</title>
<link rel=stylesheet href="site.css">
</head>
<script>
onkeydown = (e) => {
if (e.key == "ArrowLeft") {
window.location.href = 'command-line-flags';
}
if (e.key == "ArrowRight") {
window.location.href = 'environment-variables';
}
}
</script>
<body>
<div class="example" id="command-line-subcommands">
<h2><a href="./">Go в примерах</a>: Подкоманды командной строки (Command-Line Subcommands)</h2>
<p class="next">
Следующий пример: <a href="environment-variables">Переменные среды (Environment Variables)</a>.
</p>
<p class="footer">
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/command-line-subcommands">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
</p>
</div>
<script>
var codeLines = [];
</script>
<script src="site.js" async></script>
</body>
</html>

41
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Go в примерах: Константы (Constants)</title>
<link rel=stylesheet href="site.css">
</head>
<script>
onkeydown = (e) => {
if (e.key == "ArrowLeft") {
window.location.href = 'variables';
}
if (e.key == "ArrowRight") {
window.location.href = 'for';
}
}
</script>
<body>
<div class="example" id="constants">
<h2><a href="./">Go в примерах</a>: Константы (Constants)</h2>
<p class="next">
Следующий пример: <a href="for">Цикл For</a>.
</p>
<p class="footer">
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/constants">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
</p>
</div>
<script>
var codeLines = [];
</script>
<script src="site.js" async></script>
</body>
</html>

220
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Go в примерах: Defer</title>
<link rel=stylesheet href="site.css">
</head>
<script>
onkeydown = (e) => {
if (e.key == "ArrowLeft") {
window.location.href = 'panic';
}
if (e.key == "ArrowRight") {
window.location.href = 'collection-functions';
}
}
</script>
<body>
<div class="example" id="defer">
<h2><a href="./">Go в примерах</a>: Defer</h2>
<table>
<tr>
<td class="docs">
<p><em>Defer</em> используется, чтобы гарантировать, что
вызов функции будет выполнен позже при выполнении
программы, обычно для целей очистки. <code>defer</code> часто
используется там, где в других языках используются
<code>ensure</code> и <code>finally</code>.</p>
</td>
<td class="code empty leading">
</td>
</tr>
<tr>
<td class="docs">
</td>
<td class="code leading">
<a href="http://play.golang.org/p/lVhFAPGaGby" target="_blank"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
</td>
<td class="code leading">
<div class="highlight"><pre><span class="kn">import</span> <span class="p">(</span>
<span class="s">&quot;fmt&quot;</span>
<span class="s">&quot;os&quot;</span>
<span class="p">)</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
<p>Предположим, мы хотим создать файл, записать в него,
а затем закрыть, когда закончим. Вот как нам поможет
<code>defer</code>.</p>
</td>
<td class="code leading">
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
<p>Сразу же после получения объекта файла с помощью
<code>createFile</code> мы откладываем закрытие этого файла
с помощью <code>closeFile</code>. Она будет выполнена в
конце включающей функции (<code>main</code>) после завершения
<code>writeFile</code>.</p>
</td>
<td class="code leading">
<div class="highlight"><pre> <span class="nx">f</span> <span class="o">:=</span> <span class="nx">createFile</span><span class="p">(</span><span class="s">&quot;/tmp/defer.txt&quot;</span><span class="p">)</span>
<span class="k">defer</span> <span class="nx">closeFile</span><span class="p">(</span><span class="nx">f</span><span class="p">)</span>
<span class="nx">writeFile</span><span class="p">(</span><span class="nx">f</span><span class="p">)</span>
<span class="p">}</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
</td>
<td class="code leading">
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">createFile</span><span class="p">(</span><span class="nx">p</span> <span class="kt">string</span><span class="p">)</span> <span class="o">*</span><span class="nx">os</span><span class="p">.</span><span class="nx">File</span> <span class="p">{</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">&quot;creating&quot;</span><span class="p">)</span>
<span class="nx">f</span><span class="p">,</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">os</span><span class="p">.</span><span class="nx">Create</span><span class="p">(</span><span class="nx">p</span><span class="p">)</span>
<span class="k">if</span> <span class="nx">err</span> <span class="o">!=</span> <span class="kc">nil</span> <span class="p">{</span>
<span class="nb">panic</span><span class="p">(</span><span class="nx">err</span><span class="p">)</span>
<span class="p">}</span>
<span class="k">return</span> <span class="nx">f</span>
<span class="p">}</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
</td>
<td class="code leading">
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">writeFile</span><span class="p">(</span><span class="nx">f</span> <span class="o">*</span><span class="nx">os</span><span class="p">.</span><span class="nx">File</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">&quot;writing&quot;</span><span class="p">)</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Fprintln</span><span class="p">(</span><span class="nx">f</span><span class="p">,</span> <span class="s">&quot;data&quot;</span><span class="p">)</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
</td>
<td class="code leading">
<div class="highlight"><pre><span class="p">}</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
<p>Важно проверять наличие ошибок при закрытии файла,
даже в отложенной функции.</p>
</td>
<td class="code leading">
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">closeFile</span><span class="p">(</span><span class="nx">f</span> <span class="o">*</span><span class="nx">os</span><span class="p">.</span><span class="nx">File</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">&quot;closing&quot;</span><span class="p">)</span>
<span class="nx">err</span> <span class="o">:=</span> <span class="nx">f</span><span class="p">.</span><span class="nx">Close</span><span class="p">()</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
</td>
<td class="code">
<div class="highlight"><pre> <span class="k">if</span> <span class="nx">err</span> <span class="o">!=</span> <span class="kc">nil</span> <span class="p">{</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Fprintf</span><span class="p">(</span><span class="nx">os</span><span class="p">.</span><span class="nx">Stderr</span><span class="p">,</span> <span class="s">&quot;error: %v\n&quot;</span><span class="p">,</span> <span class="nx">err</span><span class="p">)</span>
<span class="nx">os</span><span class="p">.</span><span class="nx">Exit</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>
<span class="p">}</span>
<span class="p">}</span>
</pre></div>
</td>
</tr>
</table>
<table>
<tr>
<td class="docs">
<p>Запуск программы подтверждает, что файл закрыт
после записи.</p>
</td>
<td class="code">
<div class="highlight"><pre><span class="gp">$</span> go run defer.go
<span class="go">creating</span>
<span class="go">writing</span>
<span class="go">closing</span>
</pre></div>
</td>
</tr>
</table>
<p class="next">
Следующий пример: <a href="collection-functions">Функции коллекции (Collection Functions)</a>.
</p>
<p class="footer">
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/defer">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
</p>
</div>
<script>
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<meta charset="utf-8">
<title>Go в примерах: Директории (Directories)</title>
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</head>
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<h2><a href="./">Go в примерах</a>: Директории (Directories)</h2>
<p class="next">
Следующий пример: <a href="temporary-files-and-directories">Временные файлы и директории (Temporary Files and Directories)</a>.
</p>
<p class="footer">
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/directories">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
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<html>
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<title>Go в примерах: Переменные среды (Environment Variables)</title>
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}
}
</script>
<body>
<div class="example" id="environment-variables">
<h2><a href="./">Go в примерах</a>: Переменные среды (Environment Variables)</h2>
<p class="next">
Следующий пример: <a href="http">HTTP клиенты (HTTP Clients)</a>.
</p>
<p class="footer">
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/environment-variables">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Go в примерах: Epoch</title>
<link rel=stylesheet href="site.css">
</head>
<script>
onkeydown = (e) => {
if (e.key == "ArrowLeft") {
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}
}
</script>
<body>
<div class="example" id="epoch">
<h2><a href="./">Go в примерах</a>: Epoch</h2>
<table>
<tr>
<td class="docs">
<p>Общим требованием в программах является получение
количества секунд, миллисекунд или наносекунд в <a href="http://en.wikipedia.org/wiki/Unix_time">Unixtime</a>.
Вот как это сделать в Go.</p>
</td>
<td class="code empty leading">
</td>
</tr>
<tr>
<td class="docs">
</td>
<td class="code leading">
<a href="http://play.golang.org/p/MdrFxlv7Ds8" target="_blank"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
</td>
<td class="code leading">
<div class="highlight"><pre><span class="kn">import</span> <span class="p">(</span>
<span class="s">&quot;fmt&quot;</span>
<span class="s">&quot;time&quot;</span>
<span class="p">)</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
</td>
<td class="code leading">
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
<p>Используйте <code>time.Now</code> с <code>Unix</code> или <code>UnixNano</code>,
чтобы получить время, прошедшее с начала эпохи Unix в
секундах или наносекундах соответственно.</p>
</td>
<td class="code leading">
<div class="highlight"><pre> <span class="nx">now</span> <span class="o">:=</span> <span class="nx">time</span><span class="p">.</span><span class="nx">Now</span><span class="p">()</span>
<span class="nx">secs</span> <span class="o">:=</span> <span class="nx">now</span><span class="p">.</span><span class="nx">Unix</span><span class="p">()</span>
<span class="nx">nanos</span> <span class="o">:=</span> <span class="nx">now</span><span class="p">.</span><span class="nx">UnixNano</span><span class="p">()</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">now</span><span class="p">)</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
<p>Обратите внимание, что <code>UnixMillis</code> не существует,
поэтому, чтобы получить миллисекунды с начала эпохи Unix,
вам нужно будет вручную делить наносекунды.</p>
</td>
<td class="code leading">
<div class="highlight"><pre> <span class="nx">millis</span> <span class="o">:=</span> <span class="nx">nanos</span> <span class="o">/</span> <span class="mi">1000000</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">secs</span><span class="p">)</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">millis</span><span class="p">)</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">nanos</span><span class="p">)</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
<p>Вы также можете конвертировать целые секунды или наносекунды
Unixtime в соответствующее <code>время</code>.</p>
</td>
<td class="code">
<div class="highlight"><pre> <span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">time</span><span class="p">.</span><span class="nx">Unix</span><span class="p">(</span><span class="nx">secs</span><span class="p">,</span> <span class="mi">0</span><span class="p">))</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">time</span><span class="p">.</span><span class="nx">Unix</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="nx">nanos</span><span class="p">))</span>
<span class="p">}</span>
</pre></div>
</td>
</tr>
</table>
<table>
<tr>
<td class="docs">
</td>
<td class="code leading">
<div class="highlight"><pre><span class="gp">$</span> go run epoch.go
<span class="go">2012-10-31 16:13:58.292387 +0000 UTC</span>
<span class="go">1351700038</span>
<span class="go">1351700038292</span>
<span class="go">1351700038292387000</span>
<span class="go">2012-10-31 16:13:58 +0000 UTC</span>
<span class="go">2012-10-31 16:13:58.292387 +0000 UTC</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
<p>Далее мы рассмотрим еще одну задачу, связанную со
временем: разбор и форматирование времени.</p>
</td>
<td class="code empty">
</td>
</tr>
</table>
<p class="next">
Следующий пример: <a href="time-formatting-parsing">Форматирование времени (Time Formatting / Parsing)</a>.
</p>
<p class="footer">
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/epoch">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
</p>
</div>
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<meta charset="utf-8">
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<h2><a href="./">Go в примерах</a>: Ошибки (Errors)</h2>
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Следующий пример: <a href="goroutines">Горутины (Goroutines)</a>.
</p>
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<html>
<head>
<meta charset="utf-8">
<title>Go в примерах: Исполняющие процессы (Exec'ing Processes)</title>
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}
}
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<body>
<div class="example" id="execing-processes">
<h2><a href="./">Go в примерах</a>: Исполняющие процессы (Exec'ing Processes)</h2>
<p class="next">
Следующий пример: <a href="signals">Сигналы (Signals)</a>.
</p>
<p class="footer">
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<html>
<head>
<meta charset="utf-8">
<title>Go в примерах: Пути к файлам (File Paths)</title>
<link rel=stylesheet href="site.css">
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}
}
</script>
<body>
<div class="example" id="for">
<h2><a href="./">Go в примерах</a>: Цикл For</h2>
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Следующий пример: <a href="if-else">If/Else</a>.
</p>
<p class="footer">
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<html>
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<title>Go в примерах: Функции (Functions)</title>
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</head>
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}
}
</script>
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<h2><a href="./">Go в примерах</a>: Функции (Functions)</h2>
<p class="next">
Следующий пример: <a href="multiple-return-values">Функции с множественным возвратом (Multiple Return Values)</a>.
</p>
<p class="footer">
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/functions">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
</p>
</div>
<script>
var codeLines = [];
</script>
<script src="site.js" async></script>
</body>
</html>

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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Go в примерах: Горутины (Goroutines)</title>
<link rel=stylesheet href="site.css">
</head>
<script>
onkeydown = (e) => {
if (e.key == "ArrowLeft") {
window.location.href = 'errors';
}
if (e.key == "ArrowRight") {
window.location.href = 'channels';
}
}
</script>
<body>
<div class="example" id="goroutines">
<h2><a href="./">Go в примерах</a>: Горутины (Goroutines)</h2>
<p class="next">
Следующий пример: <a href="channels">Каналы (Channels)</a>.
</p>
<p class="footer">
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/goroutines">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
</p>
</div>
<script>
var codeLines = [];
</script>
<script src="site.js" async></script>
</body>
</html>

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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Go в примерах: Hello World</title>
<link rel=stylesheet href="site.css">
</head>
<script>
onkeydown = (e) => {
if (e.key == "ArrowRight") {
window.location.href = 'values';
}
}
</script>
<body>
<div class="example" id="hello-world">
<h2><a href="./">Go в примерах</a>: Hello World</h2>
<table>
<tr>
<td class="docs">
<p>Наша первая программа напечатает классическое сообщение &ldquo;hello world&rdquo;
Полный код.</p>
</td>
<td class="code leading">
<a href="http://play.golang.org/p/r-UD-XLVae8" target="_blank"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
</td>
<td class="code leading">
<div class="highlight"><pre><span class="kn">import</span> <span class="s">&quot;fmt&quot;</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
</td>
<td class="code">
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">&quot;hello world&quot;</span><span class="p">)</span>
<span class="p">}</span>
</pre></div>
</td>
</tr>
</table>
<table>
<tr>
<td class="docs">
<p>To run the program, put the code in <code>hello-world.go</code> and
use <code>go run</code>.</p>
</td>
<td class="code leading">
<div class="highlight"><pre><span class="gp">$</span> go run hello-world.go
<span class="go">hello world</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
<p>Sometimes we&rsquo;ll want to build our programs into
binaries. We can do this using <code>go build</code>.</p>
</td>
<td class="code leading">
<div class="highlight"><pre><span class="gp">$</span> go build hello-world.go
<span class="gp">$</span> ls
<span class="go">hello-world hello-world.go</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
<p>We can then execute the built binary directly.</p>
</td>
<td class="code leading">
<div class="highlight"><pre><span class="gp">$</span> ./hello-world
<span class="go">hello world</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
<p>Now that we can run and build basic Go programs, let&rsquo;s
learn more about the language.</p>
</td>
<td class="code empty">
</td>
</tr>
</table>
<p class="next">
Следующий пример: <a href="values">Типы данных (Values)</a>.
</p>
<p class="footer">
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/hello-world">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
</p>
</div>
<script>
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</script>
<script src="site.js" async></script>
</body>
</html>

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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Go в примерах: HTTP серверы (HTTP Servers)</title>
<link rel=stylesheet href="site.css">
</head>
<script>
onkeydown = (e) => {
if (e.key == "ArrowLeft") {
window.location.href = 'http';
}
if (e.key == "ArrowRight") {
window.location.href = 'spawning-processes';
}
}
</script>
<body>
<div class="example" id="http">
<h2><a href="./">Go в примерах</a>: HTTP серверы (HTTP Servers)</h2>
<p class="next">
Следующий пример: <a href="spawning-processes">Порождающие процессы (Spawning Processes)</a>.
</p>
<p class="footer">
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/http">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
</p>
</div>
<script>
var codeLines = [];
</script>
<script src="site.js" async></script>
</body>
</html>

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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Go в примерах: If/Else</title>
<link rel=stylesheet href="site.css">
</head>
<script>
onkeydown = (e) => {
if (e.key == "ArrowLeft") {
window.location.href = 'for';
}
if (e.key == "ArrowRight") {
window.location.href = 'switch';
}
}
</script>
<body>
<div class="example" id="if-else">
<h2><a href="./">Go в примерах</a>: If/Else</h2>
<table>
<tr>
<td class="docs">
<p>Условные операторы <code>if</code> и<code>else</code> в Go
выглядят достаточно стандартно</p>
</td>
<td class="code empty leading">
</td>
</tr>
<tr>
<td class="docs">
</td>
<td class="code leading">
<a href="http://play.golang.org/p/DprUWlg26IL" target="_blank"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
</td>
<td class="code leading">
<div class="highlight"><pre><span class="kn">import</span> <span class="s">&quot;fmt&quot;</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
</td>
<td class="code leading">
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
<p>Стандартное использование</p>
</td>
<td class="code leading">
<div class="highlight"><pre> <span class="k">if</span> <span class="mi">7</span><span class="o">%</span><span class="mi">2</span> <span class="o">==</span> <span class="mi">0</span> <span class="p">{</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">&quot;7 is even&quot;</span><span class="p">)</span>
<span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">&quot;7 is odd&quot;</span><span class="p">)</span>
<span class="p">}</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
<p>Вы можете использовать блоке <code>if</code> без блока <code>else</code>.</p>
</td>
<td class="code leading">
<div class="highlight"><pre> <span class="k">if</span> <span class="mi">8</span><span class="o">%</span><span class="mi">4</span> <span class="o">==</span> <span class="mi">0</span> <span class="p">{</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">&quot;8 is divisible by 4&quot;</span><span class="p">)</span>
<span class="p">}</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
<p>Присваивание переменной может происходить до условия.
Любые определенные значения будут доступны в
последующих ветках</p>
</td>
<td class="code leading">
<div class="highlight"><pre> <span class="k">if</span> <span class="nx">num</span> <span class="o">:=</span> <span class="mi">9</span><span class="p">;</span> <span class="nx">num</span> <span class="p">&lt;</span> <span class="mi">0</span> <span class="p">{</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">num</span><span class="p">,</span> <span class="s">&quot;is negative&quot;</span><span class="p">)</span>
<span class="p">}</span> <span class="k">else</span> <span class="k">if</span> <span class="nx">num</span> <span class="p">&lt;</span> <span class="mi">10</span> <span class="p">{</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">num</span><span class="p">,</span> <span class="s">&quot;has 1 digit&quot;</span><span class="p">)</span>
<span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">num</span><span class="p">,</span> <span class="s">&quot;has multiple digits&quot;</span><span class="p">)</span>
<span class="p">}</span>
<span class="p">}</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
<p>Имейте ввиду, что в Go не надо использовать скобки в условии,
но блок необходимо заключать в фигурные скобки</p>
</td>
<td class="code empty">
</td>
</tr>
</table>
<table>
<tr>
<td class="docs">
</td>
<td class="code leading">
<div class="highlight"><pre><span class="gp">$</span> go run <span class="k">if</span>-else.go
<span class="go">7 is odd</span>
<span class="go">8 is divisible by 4</span>
<span class="go">9 has 1 digit</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
<p>There is no <a href="http://en.wikipedia.org/wiki/%3F:">ternary if</a>
in Go, so you&rsquo;ll need to use a full <code>if</code> statement even
for basic conditions.</p>
</td>
<td class="code empty">
</td>
</tr>
</table>
<p class="next">
Следующий пример: <a href="switch">Switch</a>.
</p>
<p class="footer">
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/if-else">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
</p>
</div>
<script>
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<script src="site.js" async></script>
</body>
</html>

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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Go в примерах</title>
<link rel=stylesheet href="site.css">
</head>
<body>
<div id="intro">
<h2><a href="./">Go в примерах</a></h2>
<p>
<a href="http://golang.org">Go</a> - это язык программирования с
открытым исходным кодом, предназначенный для создания простого,
быстрого и надежного программного обеспечения.
</p>
<p>
<em>Go в примерах</em> Go by Example - это практическое введение
в Go с использованием примеров реальных программ. Проверьте
<a href="hello-world">первый пример</a> или просмотрите полный
список ниже.
</p>
<ul>
<li><a href="hello-world">Hello World</a></li>
<li><a href="values">Типы данных (Values)</a></li>
<li><a href="variables">Переменные (Variables)</a></li>
<li><a href="constants">Константы (Constants)</a></li>
<li><a href="for">Цикл For</a></li>
<li><a href="if-else">If/Else</a></li>
<li><a href="switch">Switch</a></li>
<li><a href="arrays">Массивы (Arrays)</a></li>
<li><a href="slices">Срезы (Slices)</a></li>
<li><a href="maps">Карты (Maps)</a></li>
<li><a href="range">Ряд (Range)</a></li>
<li><a href="functions">Функции (Functions)</a></li>
<li><a href="multiple-return-values">Функции с множественным возвратом (Multiple Return Values)</a></li>
<li><a href="variadic-functions">Функции с переменным числом аргументов (Variadic Functions)</a></li>
<li><a href="closures">Замыкания (Closures)</a></li>
<li><a href="recursion">Рекурсия (Recursion)</a></li>
<li><a href="pointers">Указатели (Pointers)</a></li>
<li><a href="structs">Структуры (Structs)</a></li>
<li><a href="methods">Методы (Methods)</a></li>
<li><a href="interfaces">Интерфейсы (Interfaces)</a></li>
<li><a href="errors">Ошибки (Errors)</a></li>
<li><a href="goroutines">Горутины (Goroutines)</a></li>
<li><a href="channels">Каналы (Channels)</a></li>
<li><a href="channel-buffering">Буферизированный канал (Channel Buffering)</a></li>
<li><a href="channel-synchronization">Синхронизация канала (Channel Synchronization)</a></li>
<li><a href="channel-directions">Направления канала (Channel Directions)</a></li>
<li><a href="select">Select</a></li>
<li><a href="timeouts">Тайм-ауты (Timeouts)</a></li>
<li><a href="non-blocking-channel-operations">Неблокируемые операции в каналах (Non-Blocking Channel Operations)</a></li>
<li><a href="closing-channels">Закрытие каналов (Closing Channels)</a></li>
<li><a href="range-over-channels">Перебор значений из каналов (Range over Channels)</a></li>
<li><a href="timers">Таймеры (Timers)</a></li>
<li><a href="tickers">Тикеры (повторения) (Tickers)</a></li>
<li><a href="worker-pools">Пулы воркеров (Worker Pools)</a></li>
<li><a href="waitgroups">WaitGroups</a></li>
<li><a href="rate-limiting">Ограничение скорости (Rate Limiting)</a></li>
<li><a href="atomic-counters">Атомарные счетчики (Atomic Counters)</a></li>
<li><a href="mutexes">Мьютексы (Mutexes)</a></li>
<li><a href="stateful-goroutines">Управление состоянием горутин (Stateful Goroutines)</a></li>
<li><a href="sorting">Сортировка (Sorting)</a></li>
<li><a href="sorting-by-functions">Сортировка через функции (Sorting by Functions)</a></li>
<li><a href="panic">Panic</a></li>
<li><a href="defer">Defer</a></li>
<li><a href="collection-functions">Функции коллекции (Collection Functions)</a></li>
<li><a href="string-functions">Строковые функции (String Functions)</a></li>
<li><a href="string-formatting">Форматирование строк (String Formatting)</a></li>
<li><a href="regular-expressions">Регулярные выражения (Regular Expressions)</a></li>
<li><a href="json">JSON</a></li>
<li><a href="xml">XML</a></li>
<li><a href="time">Время (Time)</a></li>
<li><a href="epoch">Epoch</a></li>
<li><a href="time-formatting-parsing">Форматирование времени (Time Formatting / Parsing)</a></li>
<li><a href="random-numbers">Случайные числа (Random Numbers)</a></li>
<li><a href="number-parsing">Парсинг чисел (Number Parsing)</a></li>
<li><a href="url">Парсинг URL (URL Parsing)</a></li>
<li><a href="sha1">Хеш SHA1 (SHA1 Hashes)</a></li>
<li><a href="base64">Кодирование Base64 (Base64 Encoding)</a></li>
<li><a href="reading-files">Чтение файлов (Reading Files)</a></li>
<li><a href="writing-files">Запись файлов (Writing Files)</a></li>
<li><a href="line-filters">Строковые фильтры (Line Filters)</a></li>
<li><a href="file-paths">Пути к файлам (File Paths)</a></li>
<li><a href="directories">Директории (Directories)</a></li>
<li><a href="temporary-files-and-directories">Временные файлы и директории (Temporary Files and Directories)</a></li>
<li><a href="testing">Тестирование (Testing)</a></li>
<li><a href="command-line-arguments">Аргументы командной строки (Command-Line Arguments)</a></li>
<li><a href="command-line-flags">Флаги командной строки (Command-Line Flags)</a></li>
<li><a href="command-line-subcommands">Подкоманды командной строки (Command-Line Subcommands)</a></li>
<li><a href="environment-variables">Переменные среды (Environment Variables)</a></li>
<li><a href="http">HTTP клиенты (HTTP Clients)</a></li>
<li><a href="http">HTTP серверы (HTTP Servers)</a></li>
<li><a href="spawning-processes">Порождающие процессы (Spawning Processes)</a></li>
<li><a href="execing-processes">Исполняющие процессы (Exec'ing Processes)</a></li>
<li><a href="signals">Сигналы (Signals)</a></li>
<li><a href="exit">Выход (Exit)</a></li>
</ul>
<p class="footer">
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
<br/>
переведено Nick S. | <a href="https://github.com/badkaktus/gobyexample">исходники</a>
</p>
</div>
</body>
</html>

41
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@ -1,41 +0,0 @@
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Go в примерах: Интерфейсы (Interfaces)</title>
<link rel=stylesheet href="site.css">
</head>
<script>
onkeydown = (e) => {
if (e.key == "ArrowLeft") {
window.location.href = 'methods';
}
if (e.key == "ArrowRight") {
window.location.href = 'errors';
}
}
</script>
<body>
<div class="example" id="interfaces">
<h2><a href="./">Go в примерах</a>: Интерфейсы (Interfaces)</h2>
<p class="next">
Следующий пример: <a href="errors">Ошибки (Errors)</a>.
</p>
<p class="footer">
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/interfaces">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
</p>
</div>
<script>
var codeLines = [];
</script>
<script src="site.js" async></script>
</body>
</html>

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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Go в примерах: JSON</title>
<link rel=stylesheet href="site.css">
</head>
<script>
onkeydown = (e) => {
if (e.key == "ArrowLeft") {
window.location.href = 'regular-expressions';
}
if (e.key == "ArrowRight") {
window.location.href = 'xml';
}
}
</script>
<body>
<div class="example" id="json">
<h2><a href="./">Go в примерах</a>: JSON</h2>
<table>
<tr>
<td class="docs">
<p>Go предлагает встроенную поддержку кодирования и
декодирования JSON, в том числе встроенных и
пользовательских типов данных.</p>
</td>
<td class="code empty leading">
</td>
</tr>
<tr>
<td class="docs">
</td>
<td class="code leading">
<a href="http://play.golang.org/p/Lky4Hyyl2-t" target="_blank"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
<div class="highlight"><pre><span class="kn">package</span> <span class="nx">main</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
</td>
<td class="code leading">
<div class="highlight"><pre><span class="kn">import</span> <span class="p">(</span>
<span class="s">&quot;encoding/json&quot;</span>
<span class="s">&quot;fmt&quot;</span>
<span class="s">&quot;os&quot;</span>
<span class="p">)</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
<p>Мы будем использовать эти две структуры, для демонстрации
кодирования и декодирования.</p>
</td>
<td class="code leading">
<div class="highlight"><pre><span class="kd">type</span> <span class="nx">response1</span> <span class="kd">struct</span> <span class="p">{</span>
<span class="nx">Page</span> <span class="kt">int</span>
<span class="nx">Fruits</span> <span class="p">[]</span><span class="kt">string</span>
<span class="p">}</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
<p>Только экспортируемые поля могут быть кодированы и
декодированы в JSON. Поля должны начинаться с
заглавной буквы.</p>
</td>
<td class="code leading">
<div class="highlight"><pre><span class="kd">type</span> <span class="nx">response2</span> <span class="kd">struct</span> <span class="p">{</span>
<span class="nx">Page</span> <span class="kt">int</span> <span class="s">`json:&quot;page&quot;`</span>
<span class="nx">Fruits</span> <span class="p">[]</span><span class="kt">string</span> <span class="s">`json:&quot;fruits&quot;`</span>
<span class="p">}</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
</td>
<td class="code leading">
<div class="highlight"><pre><span class="kd">func</span> <span class="nx">main</span><span class="p">()</span> <span class="p">{</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
<p>Для начала мы рассмотрим кодирование данных в
JSON строку. Вот несколько примеров для простых
типов данных.</p>
</td>
<td class="code leading">
<div class="highlight"><pre> <span class="nx">bolB</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">json</span><span class="p">.</span><span class="nx">Marshal</span><span class="p">(</span><span class="kc">true</span><span class="p">)</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nb">string</span><span class="p">(</span><span class="nx">bolB</span><span class="p">))</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
</td>
<td class="code leading">
<div class="highlight"><pre> <span class="nx">intB</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">json</span><span class="p">.</span><span class="nx">Marshal</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nb">string</span><span class="p">(</span><span class="nx">intB</span><span class="p">))</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
</td>
<td class="code leading">
<div class="highlight"><pre> <span class="nx">fltB</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">json</span><span class="p">.</span><span class="nx">Marshal</span><span class="p">(</span><span class="mf">2.34</span><span class="p">)</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nb">string</span><span class="p">(</span><span class="nx">fltB</span><span class="p">))</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
</td>
<td class="code leading">
<div class="highlight"><pre> <span class="nx">strB</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">json</span><span class="p">.</span><span class="nx">Marshal</span><span class="p">(</span><span class="s">&quot;gopher&quot;</span><span class="p">)</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nb">string</span><span class="p">(</span><span class="nx">strB</span><span class="p">))</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
<p>А вот примеры для срезов и карт, которые кодируются
в JSON массивы и объекты, как мы и ожидаем.</p>
</td>
<td class="code leading">
<div class="highlight"><pre> <span class="nx">slcD</span> <span class="o">:=</span> <span class="p">[]</span><span class="kt">string</span><span class="p">{</span><span class="s">&quot;apple&quot;</span><span class="p">,</span> <span class="s">&quot;peach&quot;</span><span class="p">,</span> <span class="s">&quot;pear&quot;</span><span class="p">}</span>
<span class="nx">slcB</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">json</span><span class="p">.</span><span class="nx">Marshal</span><span class="p">(</span><span class="nx">slcD</span><span class="p">)</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nb">string</span><span class="p">(</span><span class="nx">slcB</span><span class="p">))</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
</td>
<td class="code leading">
<div class="highlight"><pre> <span class="nx">mapD</span> <span class="o">:=</span> <span class="kd">map</span><span class="p">[</span><span class="kt">string</span><span class="p">]</span><span class="kt">int</span><span class="p">{</span><span class="s">&quot;apple&quot;</span><span class="p">:</span> <span class="mi">5</span><span class="p">,</span> <span class="s">&quot;lettuce&quot;</span><span class="p">:</span> <span class="mi">7</span><span class="p">}</span>
<span class="nx">mapB</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">json</span><span class="p">.</span><span class="nx">Marshal</span><span class="p">(</span><span class="nx">mapD</span><span class="p">)</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nb">string</span><span class="p">(</span><span class="nx">mapB</span><span class="p">))</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
<p>Пакет JSON может автоматически кодировать ваши
пользовательские типы данных. Он будет включать
только экспортируемые поля в закодированный
вывод и по умолчанию будет использовать эти
имена в качестве ключей JSON.</p>
</td>
<td class="code leading">
<div class="highlight"><pre> <span class="nx">res1D</span> <span class="o">:=</span> <span class="o">&amp;</span><span class="nx">response1</span><span class="p">{</span>
<span class="nx">Page</span><span class="p">:</span> <span class="mi">1</span><span class="p">,</span>
<span class="nx">Fruits</span><span class="p">:</span> <span class="p">[]</span><span class="kt">string</span><span class="p">{</span><span class="s">&quot;apple&quot;</span><span class="p">,</span> <span class="s">&quot;peach&quot;</span><span class="p">,</span> <span class="s">&quot;pear&quot;</span><span class="p">}}</span>
<span class="nx">res1B</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">json</span><span class="p">.</span><span class="nx">Marshal</span><span class="p">(</span><span class="nx">res1D</span><span class="p">)</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nb">string</span><span class="p">(</span><span class="nx">res1B</span><span class="p">))</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
<p>Вы можете использовать теги в объявлениях
структурных полей для настройки кодированных имен
ключей JSON. Проверьте определение <code>response2</code>
выше, чтобы увидеть пример таких тегов.</p>
</td>
<td class="code leading">
<div class="highlight"><pre> <span class="nx">res2D</span> <span class="o">:=</span> <span class="o">&amp;</span><span class="nx">response2</span><span class="p">{</span>
<span class="nx">Page</span><span class="p">:</span> <span class="mi">1</span><span class="p">,</span>
<span class="nx">Fruits</span><span class="p">:</span> <span class="p">[]</span><span class="kt">string</span><span class="p">{</span><span class="s">&quot;apple&quot;</span><span class="p">,</span> <span class="s">&quot;peach&quot;</span><span class="p">,</span> <span class="s">&quot;pear&quot;</span><span class="p">}}</span>
<span class="nx">res2B</span><span class="p">,</span> <span class="nx">_</span> <span class="o">:=</span> <span class="nx">json</span><span class="p">.</span><span class="nx">Marshal</span><span class="p">(</span><span class="nx">res2D</span><span class="p">)</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nb">string</span><span class="p">(</span><span class="nx">res2B</span><span class="p">))</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
<p>Теперь давайте рассмотрим декодирование данных
JSON в значения Go. Вот пример для общей
структуры данных.</p>
</td>
<td class="code leading">
<div class="highlight"><pre> <span class="nx">byt</span> <span class="o">:=</span> <span class="p">[]</span><span class="nb">byte</span><span class="p">(</span><span class="s">`{&quot;num&quot;:6.13,&quot;strs&quot;:[&quot;a&quot;,&quot;b&quot;]}`</span><span class="p">)</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
<p>Нам нужно предоставить переменную, в которую пакет
JSON может поместить декодированные данные.
`map[string]interface{} будет содержать карту
строк для произвольных типов данных.</p>
</td>
<td class="code leading">
<div class="highlight"><pre> <span class="kd">var</span> <span class="nx">dat</span> <span class="kd">map</span><span class="p">[</span><span class="kt">string</span><span class="p">]</span><span class="kd">interface</span><span class="p">{}</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
<p>Вот фактическое декодирование и проверка на наличие
ошибок.</p>
</td>
<td class="code leading">
<div class="highlight"><pre> <span class="k">if</span> <span class="nx">err</span> <span class="o">:=</span> <span class="nx">json</span><span class="p">.</span><span class="nx">Unmarshal</span><span class="p">(</span><span class="nx">byt</span><span class="p">,</span> <span class="o">&amp;</span><span class="nx">dat</span><span class="p">);</span> <span class="nx">err</span> <span class="o">!=</span> <span class="kc">nil</span> <span class="p">{</span>
<span class="nb">panic</span><span class="p">(</span><span class="nx">err</span><span class="p">)</span>
<span class="p">}</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">dat</span><span class="p">)</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
<p>Чтобы использовать значения в декодированной карте,
нам нужно преобразовать их в соответствующий тип.
Например, здесь мы конвертируем значение из <code>num</code>
в ожидаемый тип <code>float64</code>.</p>
</td>
<td class="code leading">
<div class="highlight"><pre> <span class="nx">num</span> <span class="o">:=</span> <span class="nx">dat</span><span class="p">[</span><span class="s">&quot;num&quot;</span><span class="p">].(</span><span class="kt">float64</span><span class="p">)</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">num</span><span class="p">)</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
<p>Доступ к вложенным данным требует ряда преобразований.</p>
</td>
<td class="code leading">
<div class="highlight"><pre> <span class="nx">strs</span> <span class="o">:=</span> <span class="nx">dat</span><span class="p">[</span><span class="s">&quot;strs&quot;</span><span class="p">].([]</span><span class="kd">interface</span><span class="p">{})</span>
<span class="nx">str1</span> <span class="o">:=</span> <span class="nx">strs</span><span class="p">[</span><span class="mi">0</span><span class="p">].(</span><span class="kt">string</span><span class="p">)</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">str1</span><span class="p">)</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
<p>Мы также можем декодировать JSON в пользовательские
типы данных. Это дает преимущество добавления
дополнительной безопасности типов в наши программы
и устранения необходимости в определении типрв
при доступе к декодированным данным.</p>
</td>
<td class="code leading">
<div class="highlight"><pre> <span class="nx">str</span> <span class="o">:=</span> <span class="s">`{&quot;page&quot;: 1, &quot;fruits&quot;: [&quot;apple&quot;, &quot;peach&quot;]}`</span>
<span class="nx">res</span> <span class="o">:=</span> <span class="nx">response2</span><span class="p">{}</span>
<span class="nx">json</span><span class="p">.</span><span class="nx">Unmarshal</span><span class="p">([]</span><span class="nb">byte</span><span class="p">(</span><span class="nx">str</span><span class="p">),</span> <span class="o">&amp;</span><span class="nx">res</span><span class="p">)</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">res</span><span class="p">)</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">res</span><span class="p">.</span><span class="nx">Fruits</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
<p>В приведенных выше примерах мы всегда использовали
байты и строки в качестве промежуточных звеньев между
данными и представлением JSON на стандартном выходе.
Мы также можем транслировать JSON-кодировки напрямую
в <code>os.Writer</code>, такие как <code>os.Stdout</code> или даже HTTP-тела
ответа.</p>
</td>
<td class="code">
<div class="highlight"><pre> <span class="nx">enc</span> <span class="o">:=</span> <span class="nx">json</span><span class="p">.</span><span class="nx">NewEncoder</span><span class="p">(</span><span class="nx">os</span><span class="p">.</span><span class="nx">Stdout</span><span class="p">)</span>
<span class="nx">d</span> <span class="o">:=</span> <span class="kd">map</span><span class="p">[</span><span class="kt">string</span><span class="p">]</span><span class="kt">int</span><span class="p">{</span><span class="s">&quot;apple&quot;</span><span class="p">:</span> <span class="mi">5</span><span class="p">,</span> <span class="s">&quot;lettuce&quot;</span><span class="p">:</span> <span class="mi">7</span><span class="p">}</span>
<span class="nx">enc</span><span class="p">.</span><span class="nx">Encode</span><span class="p">(</span><span class="nx">d</span><span class="p">)</span>
<span class="p">}</span>
</pre></div>
</td>
</tr>
</table>
<table>
<tr>
<td class="docs">
</td>
<td class="code leading">
<div class="highlight"><pre><span class="gp">$</span> go run json.go
<span class="go">true</span>
<span class="go">1</span>
<span class="go">2.34</span>
<span class="go">&quot;gopher&quot;</span>
<span class="go">[&quot;apple&quot;,&quot;peach&quot;,&quot;pear&quot;]</span>
<span class="go">{&quot;apple&quot;:5,&quot;lettuce&quot;:7}</span>
<span class="go">{&quot;Page&quot;:1,&quot;Fruits&quot;:[&quot;apple&quot;,&quot;peach&quot;,&quot;pear&quot;]}</span>
<span class="go">{&quot;page&quot;:1,&quot;fruits&quot;:[&quot;apple&quot;,&quot;peach&quot;,&quot;pear&quot;]}</span>
<span class="go">map[num:6.13 strs:[a b]]</span>
<span class="go">6.13</span>
<span class="go">a</span>
<span class="go">{1 [apple peach]}</span>
<span class="go">apple</span>
<span class="go">{&quot;apple&quot;:5,&quot;lettuce&quot;:7}</span>
</pre></div>
</td>
</tr>
<tr>
<td class="docs">
<p>Мы рассмотрели основы JSON в Go, но ознакомьтесь с
публикацией в блоге <a href="http://blog.golang.org/2011/01/json-and-go.html">JSON and Go</a>
и документацией по <a href="http://golang.org/pkg/encoding/json/">пакету JSON</a>.</p>
</td>
<td class="code empty">
</td>
</tr>
</table>
<p class="next">
Следующий пример: <a href="xml">XML</a>.
</p>
<p class="footer">
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/json">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
</p>
</div>
<script>
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<head>
<meta charset="utf-8">
<title>Go в примерах: Строковые фильтры (Line Filters)</title>
<link rel=stylesheet href="site.css">
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onkeydown = (e) => {
if (e.key == "ArrowLeft") {
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<div class="example" id="line-filters">
<h2><a href="./">Go в примерах</a>: Строковые фильтры (Line Filters)</h2>
<p class="next">
Следующий пример: <a href="file-paths">Пути к файлам (File Paths)</a>.
</p>
<p class="footer">
by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/line-filters">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
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