//阻塞,直到WaitGroup中的所以过程完成。 import ( "fmt" "sync" ) func wgProcess(wg *sync.WaitGroup, id int) { fmt.Printf("process:%d is going!\n", id) //if id == 2 { // return //} wg.Done() } func main() { //var wg sync.WaitGroup wg := new(sync.WaitGroup) for i := 0; i < 3; i++ { wg.Add(1) go wgProcess(wg, i) } wg.Wait() fmt.Println("after wait group") }
时间: 2024-11-16 17:40:28