gobyexample/xx-string-formatting.go
2012-09-20 20:49:36 -07:00

52 lines
1.4 KiB
Go

package main
import "fmt"
type Point struct {
x, y int
}
func main() {
point := Point{1, 2}
fmt.Printf("default: %v\n", point)
fmt.Printf("default w/ vals: %+v\n", point)
fmt.Printf("go: %#v\n", point)
fmt.Printf("go type: %T\n", point)
fmt.Printf("boolean: %t\n", true)
}
// == todo
// moar
// Integer:
//
// %b base 2
// %c the character represented by the corresponding Unicode code point
// %d base 10
// %o base 8
// %q a single-quoted character literal safely escaped with Go syntax.
// %x base 16, with lower-case letters for a-f
// %X base 16, with upper-case letters for A-F
// %U Unicode format: U+1234; same as "U+%04X"
// Floating-point and complex constituents:
//
// %b decimalless scientific notation with exponent a power of two,
// in the manner of strconv.FormatFloat with the 'b' format,
// e.g. -123456p-78
// %e scientific notation, e.g. -1234.456e+78
// %E scientific notation, e.g. -1234.456E+78
// %f decimal point but no exponent, e.g. 123.456
// %g whichever of %e or %f produces more compact output
// %G whichever of %E or %f produces more compact output
// String and slice of bytes:
//
// %s the uninterpreted bytes of the string or slice
// %q a double-quoted string safely escaped with Go syntax
// %x base 16, lower-case, two characters per byte
// %X base 16, upper-case, two characters per byte
// Pointer:
//
// %p base 16 notation, with leading 0x