if err not equal nil ,defer not push stack yet,so it wont execute.
As below it will execute
func main() {
src, err := os.Open("text.txt")
defer src.Close()
if err != nil {
return
}
}
On Friday, January 4, 2019 at 2:09:51 PM UTC+8, 伊藤和也 wrote:
>
> In the first example, "ok" was not printed.
>
> func main() {
> if(true) {
> return
> }
> defer fmt.Println("ok")
> }
>
> So in the second example, is the Close function executed after an error
> occurs and returned.
>
> func main() {
> src, err := os.Open("text.txt")
> if err != nil {
> return
> }
> defer src.Close()
> }
>
>
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