Python学习笔记386

使用Threading模块创建线程

使用Threading模块创建线程，直接从threading.Thread继承，然后重写__init__方法和run方法：

实例(Python 2.0+)

#!/usr/bin/python# -*- coding: UTF-8 -*-importthreadingimporttimeexitFlag = 0classmyThread(threading.Thread):   #继承父类threading.Thread    def__init__(self, threadID, name, counter):         threading.Thread.__init__(self)        self.threadID = threadID        self.name = name        self.counter = counter    defrun(self):                   #把要执行的代码写到run函数里面 线程在创建后会直接运行run函数        print"Starting " + self.name        print_time(self.name, self.counter, 5)        print"Exiting " + self.namedefprint_time(threadName, delay, counter):     whilecounter:         ifexitFlag:             (threading.Thread).exit()        time.sleep(delay)        print"%s: %s" % (threadName, time.ctime(time.time()))        counter -= 1# 创建新线程thread1 = myThread(1, "Thread-1", 1)thread2 = myThread(2, "Thread-2", 2)# 开启线程thread1.start()thread2.start()print"Exiting Main Thread"

以上程序执行结果如下；

StartingThread-1

StartingThread-2

ExitingMainThread

Thread-1:ThuMar2109:10:032013

Thread-1:ThuMar2109:10:042013

Thread-2:ThuMar2109:10:042013

Thread-1:ThuMar2109:10:052013

Thread-1:ThuMar2109:10:062013

Thread-2:ThuMar2109:10:062013

Thread-1:ThuMar2109:10:072013

ExitingThread-1

Thread-2:ThuMar2109:10:082013

Thread-2:ThuMar2109:10:102013

Thread-2:ThuMar2109:10:122013

ExitingThread-2