Go by Example:multiple Return Values

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The go language built-in supports multi-valued returns. This feature is often used in the go language. For example, returns both results and error messages in a function.

Package Mainimport "FMT"//function signature (int, int) indicates that this function will return two int values. Func vals () (int, int) {    return 3, 7}func main () {    ///Here we use the function's two different return values for multi-value assignment.    A, B: = Vals ()    FMT. Println (a)    FMT. Println (b)    //If you need only part of the function return value,    //You can use the blank definition (_) to ignore the unwanted return value    _, c: = Vals ()    FMT. Println (c)}

Output

$ go Run multiple-return-values.go377

Another good feature of the Go function is to accept variable-length parameters. We will learn in the next section.

Next example: Go by Example:variadic Functions.

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