登录百度，首先当然是先抓百度的登录包 ，由于是网页登录，最方便的自然是httpwatch了，我使用的测试账号是itiandatest1，密码是itianda，抓包结果：

复制代码 代码如下:
POST /?login HTTP/1.1
Accept: image/jpeg, application/x-ms-application, image/gif, application/xaml+xml, image/pjpeg, application/x-ms-xbap, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*
Referer: https://passport.baidu.com/?login&tpl=mn
Accept-Language: zh-CN
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E; Alexa Toolbar; BOIE9;ZHCN)
Content-Type: application/x-
Content-Type: text/html;charset=gbk
Cache-Control: no-cache
Pragma: no-cache
Content-Encoding: none
Content-Length: 850
Connection: close

OK，登陆成功。
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