python threading 模块来实现多线程

#!/usr/bin/python

import time
import threading

class PrintThread(threading.Thread):
    def __init__(self,threadid,count,mutex):
        threading.Thread.__init__(self)
        self.threadid=threadid
        self.count=count
        self.mutex=mutex
    def run(self):
        with self.mutex:
            for item in range(self.count):
                time.sleep(0.05)
                print ‘threadid is {0} this is the count {1}‘.format(self.threadid,item)

class PrintThread2(threading.Thread):
    def __init__(self,threadid,count,mutex):
        threading.Thread.__init__(self)
        self.threadid=threadid
        self.count=count
        self.mutex=mutex
    def run(self):
        for item in range(self.count):
            with self.mutex:
                time.sleep(0.1)
                print ‘thread id is {0} this is the count {1}‘.format(self.threadid,item)

if __name__=="__main__":
    threads=[]
    stdoutLock=threading.Lock()
    for item in range(5):
        pt=PrintThread2(item,100,stdoutLock)
        threads.append(pt)
        pt.start()
    for item in threads:
        item.join()
    print ‘this end ...‘