Go语言内建方法之panic&&recover

  • 处理异常

    • panic 抛出异常

    • recover 捕获异常

      package main
import (
    "fmt"
)
func main() {
    recoverPanic()
}
func recoverPanic()  {
    defer coverPanic()                  //捕获异常
    //panic("panic")                    //panic message panic
    //panic(errors.New("error"))        //error message error
    panic(1)                          //unknown panic 1
}
func coverPanic()  {
    message := recover()
    switch message.(type) {
    case string:
        fmt.Println("panic message",message)
    case error:
        fmt.Println("error message",message)
    default:
        fmt.Println("unknown panic",message)
    }
}
Last modification：September 23, 2020
© Allow specification reprint
如果觉得我的文章对你有用，请随意赞赏