函数返回值

函数返回值

func haha(传值) (返回值) {....}
func haha(a, b int) (sum int) {....}

一个返回值函数

package main

import "fmt"

func main() {
    //把sum函数的返回值,传到一个变量中
    sum1 := sum(3, 4)
    fmt.Println(sum1)

}

        //返回int值
func sum(value1, value2 int) int {
    value3 := value1 + value2
    return value3
}

预定返回值名字

package main

import "fmt"

func main() {
    //把sum函数的返回值,传到一个变量中
    sum1 := sum(3, 4)
    fmt.Println(sum1)

}

        //返回值起名为he
func sum(value1, value2 int) (he int) {
    
    //这he对应好 返回值he
    he = value1 + value2
    
    //不用写sum 自然知道return它
    return
}

多个返回值函数

package main

import "fmt"

func main() {

    jia, jian, cheng, chu := yun_suan(3, 4)
    fmt.Println(jia, jian, cheng, chu)

}

//为数据运算加减乘除定义多个返回数值
func yun_suan(value1, value2 int) (jia, jian, cheng, chu int) {

    jia = value1 + value2
    jian = value1 - value2
    cheng = value1 * value2
    chu = value1 / value2

    return jia, jian, cheng, chu
}