#!/usr/bin/env python
#coding=utf-8
import threading
import time
 
class MyThread(threading.Thread):
    def run(self):
        global num 
        time.sleep(1)
 
        if mutex.acquire(1):  
            num = num+1
            msg = self.name+' set num to '+str(num)
            print msg
            mutex.release()
num = 0
mutex = threading.Lock()
def test():
    for i in range(5):
        t = MyThread()
        t.start()
if __name__ == '__main__':
    test()
Thread-1 set num to 1
Thread-3 set num to 2
Thread-4 set num to 3
Thread-5 set num to 4
Thread-2 set num to 5
希望本文所述对大家的Python程序设计有所帮助。