Can Golang anonymous functions return multiple values?

Yes, anonymous functions in Go language can return multiple values. Syntax: func(arg1, arg2, ..., argN) (ret1, ret2, ..., retM) { // Function body }. Usage: Use the := operator to receive the return value; use the return keyword to return multiple values.

#Can anonymous functions in Go language return multiple values?

Short answer:

Yes, anonymous functions in Go language can return multiple values.

Syntax:

func(arg1, arg2, ..., argN) (ret1, ret2, ..., retM) {
    // 函数体
}

Among them:

• arg1, arg2, .. ., argN is the parameter list of the anonymous function.
• ret1, ret2, ..., retM is the return value list of the anonymous function.

Usage:

1. Use the := operator to receive the return value:

values := func(x, y int) (int, int) {
    return x + y, x - y
}(10, 5)

In the above code, the anonymous function receives two integer parameters x and y, and returns their sum and difference. The := operator assigns the return value of an anonymous function to values variables one by one.

1. Use the return keyword to return multiple values:

func(x int) (int, int) {
    return x + 1, x - 1
}

Actual case:

Consider the following code:

func main() {
    // 定义一个接收整数并返回其加法和减法结果的匿名函数
    addSub := func(x int) (int, int) {
        return x + 1, x - 1
    }

    // 调用匿名函数并分别将加法和减法结果存储在变量中
    sum, diff := addSub(10)

    fmt.Println("Add:", sum)
    fmt.Println("Sub:", diff)
}

Output:

Add: 11
Sub: 9

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