package formatting import ( "fmt" "math" ) var f = fmt.Printf type Person struct { name string age uint } func Formatting() { p := Person{"Nadeshiko", 15} f("int: %d\n", 5) f("float: %f\n", 4) f("float (scientific): %e\n", math.Pow(2, 32)) f("string: %s\n", "hello") f("go value loose: %v\n", p) f("go value strict: %+v\n", p) f("go value verbose: %#v\n", p) f("go bool: %t\n", true) f("go type: %T\n", p) f("go ptr address: %p\n", &p) f("go hex string: %x\n", "foo") f("go hex int: %x\n", 16) f("go bin int: %b\n", 5) f("go oct int: %o\n", 8) f("go num width: |%5d|\n", 2) f("go num width (left align): |%-5d|\n", 2) f("go float precision (left align): |%-5.2f|\n", 3.141516) f("go char: %c\n", 97) f("go custom width specifier: |%*s|\n", 5, "foo") }