1 import time
2 def saySorry():
3     print("亲爱的， 我错了， 我能吃饭了吗？ ")
4     time.sleep(1)
5 if __name__ == "__main__":
6     for i in range(5):
7         saySorry()

 1 #coding=utf-8
 2 import threading
 3 import time
 4 def saySorry():
 5     print("亲爱的， 我错了， 我能吃饭了吗？ ")
 6     time.sleep(1)
 7 
 8 if __name__ == "__main__":
 9     for i in range(5):
10         t = threading.Thread(target=saySorry)
11         t.start() #启动线程， 即让线程开始执?

 1 #coding=utf-8
 2 import threading
 3 from time import sleep,ctime
 4 
 5 
 6 def sing():
 7     for i in range(3):
 8         print("正在唱歌...%d"%i)
 9         sleep(1)
10 
11 
12 def dance():
13     for i in range(3):
14         print("正在跳舞...%d"%i)
15         sleep(1)
16 
17 
18 if __name__ == ‘__main__‘:
19     print(‘---开始---:%s‘%ctime())
20     t1 = threading.Thread(target=sing)
21     t2 = threading.Thread(target=dance)
22     t1.start()
23     t2.start()
24     #sleep(5) # 屏蔽此?代码， 试试看， 程序是否会??结束？
25     print(‘---结束---:%s‘%ctime())

 1 #coding=utf-8
 2 import threading
 3 from time import sleep,ctime
 4 
 5 
 6 def sing():
 7     for i in range(3):
 8         print("正在唱歌...%d"%i)
 9         sleep(1)
10 
11 
12 def dance():
13     for i in range(3):
14         print("正在跳舞...%d"%i)
15         sleep(1)
16 
17 
18 if __name__ == ‘__main__‘:
19     print(‘---开始---:%s‘%ctime())
20     t1 = threading.Thread(target=sing)
21     t2 = threading.Thread(target=dance)
22     t1.start()
23     t2.start()
24 
25     while True:
26         length = len(threading.enumerate())
27         print(‘当前运?的线程数为： %d‘%length)
28         if length<=1:
29             break
30     sleep(0.5)