155 lines
5.4 KiB
Plaintext
Generated
155 lines
5.4 KiB
Plaintext
Generated
<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<title>Go by Example: Values</title>
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<link rel=stylesheet href="site.css">
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</head>
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<script>
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onkeydown = (e) => {
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if (e.key == "ArrowLeft") {
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window.location.href = 'hello-world';
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}
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if (e.key == "ArrowRight") {
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window.location.href = 'variables';
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}
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}
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</script>
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<body>
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<div class="example" id="values">
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<h2><a href="./">Go by Example</a>: Values</h2>
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<table>
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<tr>
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<td class="docs">
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<p>Go has various value types including strings,
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integers, floats, booleans, etc. Here are a few
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basic examples.</p>
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</td>
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<td class="code empty leading">
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</td>
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</tr>
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<tr>
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<td class="docs">
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</td>
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<td class="code leading">
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<a href="http://play.golang.org/p/YnVS3LZr8pk"><img title="Run code" src="play.png" class="run" /></a><img title="Copy code" src="clipboard.png" class="copy" />
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<pre class="chroma"><span class="kn">package</span> <span class="nx">main</span>
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</pre>
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</td>
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</tr>
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<tr>
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<td class="docs">
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</td>
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<td class="code leading">
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<pre class="chroma"><span class="kn">import</span> <span class="s">"fmt"</span>
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</pre>
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</td>
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</tr>
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<tr>
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<td class="docs">
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</td>
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<td class="code leading">
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<pre class="chroma"><span class="kd">func</span> <span class="nf">main</span><span class="p">()</span> <span class="p">{</span>
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</pre>
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</td>
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</tr>
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<tr>
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<td class="docs">
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<p>Strings, which can be added together with <code>+</code>.</p>
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</td>
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<td class="code leading">
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<pre class="chroma">
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<span class="nx">fmt</span><span class="p">.</span><span class="nf">Println</span><span class="p">(</span><span class="s">"go"</span> <span class="o">+</span> <span class="s">"lang"</span><span class="p">)</span>
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</pre>
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</td>
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</tr>
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<tr>
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<td class="docs">
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<p>Integers and floats.</p>
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</td>
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<td class="code leading">
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<pre class="chroma">
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<span class="nx">fmt</span><span class="p">.</span><span class="nf">Println</span><span class="p">(</span><span class="s">"1+1 ="</span><span class="p">,</span> <span class="mi">1</span><span class="o">+</span><span class="mi">1</span><span class="p">)</span>
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<span class="nx">fmt</span><span class="p">.</span><span class="nf">Println</span><span class="p">(</span><span class="s">"7.0/3.0 ="</span><span class="p">,</span> <span class="mf">7.0</span><span class="o">/</span><span class="mf">3.0</span><span class="p">)</span>
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</pre>
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</td>
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</tr>
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<tr>
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<td class="docs">
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<p>Booleans, with boolean operators as you’d expect.</p>
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</td>
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<td class="code">
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<pre class="chroma">
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<span class="nx">fmt</span><span class="p">.</span><span class="nf">Println</span><span class="p">(</span><span class="kc">true</span> <span class="o">&&</span> <span class="kc">false</span><span class="p">)</span>
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<span class="nx">fmt</span><span class="p">.</span><span class="nf">Println</span><span class="p">(</span><span class="kc">true</span> <span class="o">||</span> <span class="kc">false</span><span class="p">)</span>
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<span class="nx">fmt</span><span class="p">.</span><span class="nf">Println</span><span class="p">(!</span><span class="kc">true</span><span class="p">)</span>
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<span class="p">}</span>
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</pre>
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</td>
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</tr>
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</table>
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<table>
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<tr>
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<td class="docs">
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</td>
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<td class="code">
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<pre class="chroma"><span class="gp">$</span> go run values.go
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<span class="go">golang
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</span><span class="go">1+1 = 2
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</span><span class="go">7.0/3.0 = 2.3333333333333335
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</span><span class="go">false
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</span><span class="go">true
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</span><span class="go">false</span></pre>
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</td>
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</tr>
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</table>
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<p class="next">
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Next example: <a href="variables">Variables</a>.
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</p>
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<p class="footer">
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by <a href="https://markmcgranaghan.com">Mark McGranaghan</a> | <a href="https://github.com/mmcgrana/gobyexample/blob/master/examples/values">source</a> | <a href="https://github.com/mmcgrana/gobyexample#license">license</a>
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</p>
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</div>
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<script>
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var codeLines = [];
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codeLines.push('');codeLines.push('package main\u000A');codeLines.push('import \"fmt\"\u000A');codeLines.push('func main() {\u000A');codeLines.push(' fmt.Println(\"go\" + \"lang\")\u000A');codeLines.push(' fmt.Println(\"1+1 \u003D\", 1+1)\u000A fmt.Println(\"7.0/3.0 \u003D\", 7.0/3.0)\u000A');codeLines.push(' fmt.Println(true \u0026\u0026 false)\u000A fmt.Println(true || false)\u000A fmt.Println(!true)\u000A}\u000A');codeLines.push('');
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