这看起来有点愚蠢,肯定有更好的方法吗？
err = SendMessageAndWait(db,"this is a test")
if err != nil {
fmt.Println("Error sending message",err)
return
}
err = DoSomething(db,err)
return
}
err = CheckSomething(db,"this is another test")
if err != nil {
fmt.Println("Error sending message",err)
return
}
err = SendMessageAndWait(db,"this is a third test")
if err != nil {
fmt.Println("Error sending message",err)
return
}
... x10 ...
可悲的是,这就是Go的方式,但是在某种程度上你可以让它更清洁：
func isError(err error,pre string) error {
if err != nil {
log.Printf("%v: %v",pre,err)
}
return err
}
func isErrorBool(err error,pre string) (b bool) {
if err != nil {
log.Printf("%v: %v",err)
b = true
}
return
}
func checkSomething() error {
return nil
}
func main() {
if err := isError(checkSomething(),"something Failed"); err != nil {
return /* err */
}
//if you don't want to return the error,just check it and die.
if isErrorBool(checkSomething(),"something else Failed") {
return
}
}
