如下所示：

# coding=utf-8

import urllib2

import urllib

from cookielib import CookieJar

import os

import re

import time

class ConnectWeb(object):

def __init__(self):

self.cookiejarinmemory = CookieJar()

self.opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(self.cookiejarinmemory))

urllib2.install_opener(self.opener)

self.username = ""

self.password = ""

def connect_baidu(self): #检测目前是否联网

try:

urllib2.urlopen("http://www.baidu.com", timeout=2)

return 1

except:

return 0

def login(self): #模拟上网验证 验证网页几乎都是不同的，下面附上我们学校的， form表单自己根据情况填，用chrome很容易得到post的url和表单

try:

post_url = ""

form = {"action": "login", "username": self.username, "password": self.password, "ac_id": 4,

"user_ip": "", "nas_ip": "", "user_mac": "", "save_me": 1, "ajax": 1}

fm1 = urllib.urlencode(form)

page = urllib2.urlopen(post_url, fm1).read()

except Exception as e:

self.disconnect()

time.sleep(1)

self.connect_wifi()

def disconnect(self):# 断开wifi

os.system("netsh wlan disconnect")

def wifis_nearby(self):# 查询附近wifi

p = os.popen("netsh wlan show all")

content = p.read().decode("GB2312", "ignore")

temp = re.findall(u"(SSID.*\n.*Network type.*\n.*\u8eab\u4efd\u9a8c\u8bc1.*\n.*\u52a0\u5bc6.*\n.*BSSID.*\n)",

content)

result = []

for i in temp:

name = re.findall(u"SSID.*:(.*)\n", i)[0].replace(" ", "")

result.append(name)

return result

def connect_wifi(self, name=None): #连接wifi

os.system("netsh wlan connect name=%s" % name)

def checking(self):# 一直检测是否有断网，如果断网则重新连接

while 1:

try:

if not self.connect_baidu():

self.login()

except:

pass

time.sleep(10)

if __name__ == "__main__":

test = ConnectWeb()

test.login()

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