线程类主动创建线程对象

import threadingimport timedef listen():    print("listen")    time.sleep(3)    print("listen over")def writeblog():    print("writeblog")    time.sleep(5)    print("writeblog over")    print(time.time()-s)s=time.time()# 线程对象t1=threading.Thread(target=listen)t2=threading.Thread(target=writeblog)t1.start()t2.start()print("ending")

　　

继承线程类创建对象

#继承Thread式创建import threadingimport timeclass MyThread(threading.Thread):    def __init__(self,num):        threading.Thread.__init__(self)        self.num=num    def run(self):        print("running on number:%s" %self.num)        # 睡三秒程序结束        time.sleep(3)t1=MyThread(56)t2=MyThread(78)t1.start()t2.start()print("ending")