go | 08 defer调整顺序

1、多个defer顺序

package main
import "fmt"
func main()  {
    //defer多个，打印顺序是倒的，类似出栈
    defer fmt.Println("end1")
    defer fmt.Println("end2")
    fmt.Println("aaa")
    fmt.Println("bbb")
}

2、defer与return 的执行顺序

package main
import "fmt"
func main()  {
    deferAndReturn()
}
func deferAndReturn() int {
    defer deferFunc()
    return returnFunc()
}
func deferFunc() int {
    fmt.Println("defer func called...")
    return 0
}
func returnFunc() int {
    fmt.Println("returnFunc func called...")
    return 0
}

结果：return比defer先执行