python多线程扫描端口的例子

#!/usr/bin/python
# www.jb200.com

# -*- 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:
            break
    print ''
    f = open('portOpen.py','a')
    f.write("'''")
    f.write(ctime()+'n')
    f.flush()
    for i in range(0,len(que)):
        print que[i]
        f.write('t'+que[i]+'n')
        f.flush()
    f.write("'''")
    f.close()
    raw_input()
'''Mon Jan 13 07:12:53 2014
 localhost 135
 localhost 1028
 localhost 8048
 localhost 8080
 localhost 8181
 localhost 8730
 localhost 12040
 localhost 12897
 localhost 18040
 localhost 18611
''''''Tue Jan 14 10:04:58 2014
 localhost 135
 localhost 1028
 localhost 8048
 localhost 8080
 localhost 8181
 localhost 12897
 localhost 18040
 localhost 18611
'''