Python2.x实现多线程主机端口扫描（入门）

# -*- coding:utf8 -*-
import socket
import thread
import time
socket.setdefaulttimeout(3)
def socket_port(ip, port):
        if port >=10001:
            print 'all of ports would be scanned!\n'
        s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        result = s.connect_ex((ip, port))
        if result == 0:
            lock.acquire()
            print ip, ':', port, 'port is open'
            lock.release()
        s.close()
def ip_scan(ip):
    print 'start scanning host: %s' %ip
    for i in range(0, 10001):
        thread.start_new_thread(socket_port, (ip, i))
    print 'The port scan finished!\n'
    time.sleep(1)
if __name__ == '__main__':
    url = raw_input('Input the ip or domain you want to scan：')
    if url=='':
        print 'ip is none!'
        exit()
    lock = thread.allocate_lock()
    ip_scan(url)

示例如下：