~~~ import threading def sing(): for i in range(5): print("sing ... %d" % i) if __name__ == '__main__': sing_thread = threading.Thread(target=sing) sing_thread.start() # 在主线程阻塞等待, Thread对象标识的子线程退出之后，才会继续执行下面的代码 sing_thread.join() print("执行完毕") ~~~