编辑代码

package main
import "fmt"

func swap(a *int, b *int){
    temp := *a
    *a = *b
    *b = temp
}

func main () {
    var a int = 69
    var b int = 96
    fmt.Println("交换前：a=", a, "b=", b)
    swap(&a,&b)
    fmt.Println("交换后：a=", a, "b=", b)   
}