<!-- lang: cpp --> package main import ( "fmt" "time" ) func panic_test(){ defer func() { fmt.Println("no") // if e := recover(); e != nil { // fmt.Println("some wrong:",e) // } }() z := 0 zero := 1/z fmt.Println(zero) } func main() { panic_test() go func() { for a := range time.Tick(1e9) { fmt.Printf("cur conn num: %v\n",a) } }() list := []string{"a","b","c","d"} //fmt.Printf("in main,list addr is %p \r\n",list) go func( list []string) { //fmt.Printf("in goruotine,list) time.Sleep(1e9) (list)[2] = "CC" list = append(list,"FF") for i,c := range list{ fmt.Println( "in go",i,c) } }(list) for i,c := range list{ fmt.Println( i,c) time.Sleep(1e9) } fmt.Println( "second printf") for i,c) //time.Sleep(1e9) } for{time.Sleep(1e5)} }