go语言中并发执行多线程任务的时候有没有类似java中CountDownLatch的函数？

func main() {
	var waitGroup sync.WaitGroup
	waitGroup.Add(5)
	for i := 0; i < 5; i++ {
		go func(i int) {
			fmt.Println("准备执行：", i)
			time.Sleep(time.Second)
			waitGroup.Done()
		}(i)
	}
	waitGroup.Wait()
	fmt.Println("all done")
}