不说了,都在酒(代码)里
package main
import (
"errors"
"fmt"
)
/* & 获得地址 *获得值 */
func main() {
defer fmt.Println("程序已结束。")
a := 100
b := 10
fmt.Println("print address :", &a, &b)
fmt.Println("print value :", *&a, *&b, a, b)
deliver(a, b)
fmt.Println(a, b)
err := transmit(&a, &b)
if err != nil {
fmt.Println(err)
}
fmt.Println(a, b)
}
//传值
func deliver(a int, b int) {
temp := a
a = b
b = temp
}
//传址
func transmit(a *int, b *int) error {
temp := *a
*a = *b
*b = temp
return errors.New("随便打印一个异常玩玩,传址才能实现形参值得改变")
}