import threading
import time
class MyThread(threading.Thread):
    def __init__(self,name):
        super(MyThread,self).__init__()
        self.name = name
    def run(self):
        for i in range(4):
            print(self.name)
            time.sleep(2)
if __name__=='__main__':
    r1 = MyThread("张三")
    r1.start()
    while 1:
        print(time.strftime("%Y-%m-%d %H:%M:%S", time.localtime()))
        time.sleep(1)