多变量分配
在 Go 中,你可以同时声明多个变量。
// You can declare multiple variables of the same type in one line
var a, b, c string
var d, e string = "Hello", "world!"
// You can also use short declaration to assign multiple variables
x, y, z := 1, 2, 3
foo, bar := 4, "stack" // `foo` is type `int`, `bar` is type `string`
如果函数返回多个值,你还可以根据函数的返回值为变量赋值。
func multipleReturn() (int, int) {
return 1, 2
}
x, y := multipleReturn() // x = 1, y = 2
func multipleReturn2() (a int, b int) {
a = 3
b = 4
return
}
w, z := multipleReturn2() // w = 3, z = 4