实现并发join的方法

import threading
import time

def music():
    print("begin to listen %s" %time.ctime())
    time.sleep(3)
    print("stop to listen %s" %time.ctime())

def game():
    print("begin to listen %s" % time.ctime())
    time.sleep(5)
    print("stop to listen1 %s" % time.ctime())

if __name__ =='__main__':

    t1 = threading.Thread(target=music)

    t2 = threading.Thread(target=game)

    t1.start()
    # t1.join()
    t2.start()

    # t1.join()
    t2.join()

    print("ending")

   # l = []
   #
   #  for i in range(2):
   #      threading.Thread(target=music)