python多线程练习

 import threading
 from time import sleep,ctime 

 def print1():
     for i in range(10):
         print(i,end='')
         print('  0123456789  %s' % ctime())
         sleep(4)

 def print2():
     for i in range(10):
         print(i,end='')
         print('  哈哈        %s' % ctime())
         sleep(3)

 t1 = threading.Thread(target=print1)#t1 = threading.Thread(target=music,args=('参数',))
 t2 = threading.Thread(target=print2)
 threads = [t1,t2]

 for t in threads:
     t.setDaemon(True)#父进程结束，就杀死子进程
     t.start()

 for t in threads:#等待进程结束
     t.join()
 print('OK!')