import threading import time class myThread (threading.Thread): #继承父类threading.Thread def __init__(self, threadID, name): threading.Thread.__init__(self) self.name = name def run(self): #把要执行的代码写到run函数里面 线程在创建后会直接运行run函数 while 1: print("Starting " + self.name) time.sleep(1) # 创建新线程 thread1 = myThread(1, "this is thread1") thread2 = myThread(2, "this is thread2") thread3 = myThread(3, "this is thread3") # 开启线程 thread1.start() thread2.start() thread3.start()