import threading import time def userTest(aa,bb): print(aa) time.sleep(3) print(bb) if __name__ == '__main__': threads = [] # target=执行的函数,args=传给函数的值,range代表打开几个线程执行 for _ in range(33): t = threading.Thread(target=userTest,args=("开始","结束")) threads.append(t) # 打开线程活动 for thr in threads: thr.start() # 等待至线程中止 for thr in threads: thr.join()