最近在做一个自动登录ChinaNet的程序，用python写了一段代码，很简单，就是提交一组数据，别的都好说，就是验证码的问题不好解决，并不是想过这个验证码，只是想集成到软件中去，不过目前测试阶段中，在知道验证码的前提下，提交验证码都会显示错误，一直没想明白，谁让俺是菜鸟呢，呵呵，特地过来学习的
根据网页抓包来看，应该是Session机制的，服务器存储验证码，然后我把输入的验证码提交给服务器以便服务器比对，我想先验证这个原理是否正确，我首先用chrome打开登录页面，然后找到验证码的位置，上面写着C74R，于是我就在python中将提交的验证码写为C74R，然后提交（chrome打开登陆页面后再就没动过），根据我的设想，此时服务器中存储的验证码应该是chrome登陆页面显示的那个验证码，我用python将这个验证码提交给服务器，服务器比对后一样就应该通过了，但实际结果是返回的信息为验证码错误，不知道为什么
chrome中用developer tools进行抓包，得到验证文件的提交数据及返回信息（这个是验证码正确的时候抓取的信息）：
——————————————————————————————————————
Request URL:https://wlan.ct10000.com/authServlet
Request Method:POST
Status Code:302 Moved Temporarily
Request Headers
Accept:text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Charset:UTF-8,*;q=0.5
Accept-Encoding:gzip,deflate,sdch
Accept-Language:zh-CN,zh;q=0.8,en-US;q=0.6,en;q=0.4
Cache-Control:max-age=0
Connection:keep-alive
Content-Length:570
Content-Type:application/x-www-form-urlencoded
Cookie:JSESSIONID=M1prQMGKm1NSYhrwn4GsTGtrncCxptc5VrDPjs2PphyMKyY0DNzn!411575167
Host:wlan.ct10000.com
Origin:https://wlan.ct10000.com
Referer:https://wlan.ct10000.com/style/portalv4/index.jsp?paramStr=UGGOtheTLCc9BADAVNNfQ%2Fjl3JXkiadxLfk%2FnjPPWpwrz7J90Wr8TesQ3sjbUo0tXXO5%2Bn6cIhqg%0AsxyqHXLqZd%2FKiEmlCflUivY2GEq9KPma699v0DKCx8mbuErCjq%2BjuLtaCdFokGwo93zlJpYm%2B1Do%0Aw%2BeMS9xb0umqCpi8mDym7Z4GkGVydTY%2BkS3eib835RvY892RPpjbSmg65MllnzZ5C7Ex3Kc9
User-Agent:Mozilla/5.0 (Windows NT 6.1) AppleWebKit/536.5 (KHTML, like Gecko) Chrome/19.0.1084.41 Safari/536.5
Form Data
UserName:18951845678
PassWord:123456
verifycode:C74R
UserType:1
paramStr:UGGOtheTLCc9BADAVNNfQ/jl3JXkiadxLfk/njPPWpwrz7J90Wr8TesQ3sjbUo0tDklM4Zc+c0OQ
EPr96yNp/xlNNy+EUDwdQlHLyaBlabg0oKuWB/kT9nWwcvjy5PelV5knKYo/+CvLqlSFj4fiElDo
w+eMS9xb0umqCpi8mDym7Z4GkGVydTY+kS3eib835RvY892RPpjbSmg65MllnzZ5C7Ex3Kc9
isChCardUser:false
isWCardUser:false
province:cw.js.chntel.com
verifycode:
isCookie:false
cookieType:0
UserName2:
PassWord2:
verifycode2:
UserName1:18951845678
isRegisterRealm:false
province:
defaultProv:js
PassWord1:123456
verifycode1:C74R
Response Headers
Content-Type:text/html
Date:Sun, 09 Sep 2012 16:57:33 GMT
Location:https://wlan.ct10000.com/style/portalv4/logon.jsp?paramStr=IPyBmL7KZTqKVdJWnwW6hWTvLyNMYSSQe86TC9ntDKnLEa3rEZr7lkUs%2FrSsFZZmwxoHvA9gsj0v%0AiWQpTZJjSKuY9%2B3Y9%2FollpKh8aKd4Em66MjjhbIxf4dn2CWIQUTvQdqL3FY5gcbGlnz7s4P9AJjo%0Agnv3sCHfsddDeKmXjX0ksNYZykxiJkzOTTFHyJtZQveSpQ32S3CQEPr96yNp%2FzUVUl0m26tzKVhT%0AK8eEdWOjlfiaqGpYgUSIyoEOc7M6xxvu7N%2Bvs%2Bu%2F%2F0dhMYW6W%2BbI7YFUP%2BiNSHUVaZFCi7Y%3D
Set-Cookie:UserType=; expires=Thursday, 01-Jan-1970 01:00:00 GMT; path=/, PassWord1=; expires=Thursday, 01-Jan-1970 01:00:00 GMT; path=/, UserName1=; expires=Thursday, 01-Jan-1970 01:00:00 GMT; path=/, province1=; expires=Thursday, 01-Jan-1970 01:00:00 GMT; path=/, phoneNo=; expires=Thursday, 01-Jan-1970 01:00:00 GMT; path=/
Transfer-Encoding:chunked
——————————————————————————————————————
测试所用python代码中提交的数据为：
submit_data = {'UserName': '18951845678', 'PassWord': '123456', 'verifycode': 'C74R', 'verifycode1': 'C74R', 'UserType': '1', 'paramStr': 'UGGOtheTLCc9BADAVNNfQ4zQrJz7WRs7Lfk/njPPWpwrz7J90Wr8TesQ3sjbUo0tDklM4Zc+c0OQEPr96yNp/xlNNy+EUDwdQlHLyaBlabg0oKuWB/kT9nWwcvjy5Pelth87Nnula5YwJlmFcmk/YFDow+eMS9xb0umqCpi8mDym7Z4GkGVydTY+kS3eib835RvY892RPpjbSmg65MllnzZ5C7Ex3Kc9', 'isChCardUser': 'false', 'isWCardUser': 'false', 'province': 'cw.js.chntel.com', 'cookieType': '0', 'isRegisterRealm': 'false'}
部分无关紧要的数据未提交，应该没有大碍，python其余代码仅仅将数据进行提交，没有做任何特殊处理，请问各位大侠，哪个地方出问题了，或者说哪些地方想的不对，请指点一二，十分感谢！
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