python多线程扫描端口示例

代码如下:
# -*- coding: cp936 -*-
import socket
from threading import Thread,activeCount,Lock
from time import ctime
mutex = Lock()

class Loop(Thread):
    def __init__(self,ip,port,que):
        Thread.__init__(self)
        self.ip     = ip
        self.port   = port
        self.que    = que

    def run(self):
        global mutex
        try:
            client = socket.socket()
            indicator = client.connect_ex((self.ip,self.port))
            if mutex.acquire(1):
                if indicator == 0:
                    que.append(self.ip+'/t'+str(self.port))
                else:
                    print self.ip,'/t',str(self.port),'不可达'
                mutex.release()
        except:
            if mutex.acquire(1):
                print self.ip,'/t',str(self.port),'不可达'
                mutex.release()

class Main(Thread):
    def __init__(self,ip,que):
        Thread.__init__(self)
        self.ip  = ip
        self.que = que

    def run(self):
        i = 0
        while i < 65536:
            if activeCount() <= 200:
                Loop(ip=self.ip,port=i,que=self.que).start()
                i = i + 1

if __name__ == '__main__':
    que = []
    ip = raw_input('IP=')

    main = Main(ip = ip,que = que)
    main.start()

    while True:
        if activeCount() <= 1 and main.isAlive() == False: