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From: Pen Ttt on 19 Jun 2010 22:45
require 'rubygems'
require 'mechanize'
agent = WWW::Mechanize.new
agent.user_agent_alias = 'Windows IE 7'
page = agent.post("http://sso.chinaunix.net/Login?")
form = page.forms[0]
form['login_name'] = 'luofeiyu'
form['password'] = 'qwerty'
page = agent.submit(form)
page.save("/home/pt/web")

irb(main):166:0> form = page.forms[0]
=> nil
irb(main):167:0> form['login_name'] = 'luofeiyu'
NoMethodError: undefined method `[]=' for nil:NilClass
from (irb):167
from :0
irb(main):168:0> form['password'] = 'qwerty'
NoMethodError: undefined method `[]=' for nil:NilClass
from (irb):168
from :0
irb(main):169:0> page = agent.submit(form)
ArgumentError: wrong number of arguments (0 for 1)
from /var/lib/gems/1.8/gems/mechanize-1.0.0/lib/mechanize.rb:368:in
`method'
from /var/lib/gems/1.8/gems/mechanize-1.0.0/lib/mechanize.rb:368:in
`submit'
from (irb):169
from :0
would you mind to tell me what wrong is?
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From: Pen Ttt on 22 Jun 2010 23:18
view-page source ,you can see :
<form id="frmLogin" name="frmLogin" method="post" action=""
class="sso_checked">
<input type="hidden" name="cookie_flag">
<div class="login">

<p class="title">欢迎您<br />已经拥有ChinaUnix帐户</p>
<p class="mt8">
用户名：<input type="text" id="login_name" name="login_name"
size="20" maxlength="30" class="inputText1 {required:true,minLength:2}"
value="" />
</p>
<p class="mt8">
密&nbsp;&nbsp;码：<input type="password" id="password"
name="password" size="20" maxlength="30" class="inputText1
{required:true,minLength:4}">

</p>
<p class="mt8">
<input type="checkbox" value="30" id="furmcookie"
name="furmcookie">记住我的密码
<input type="submit" name="btn_login" value="登录" class="button1"
style=" float:right; margin-top:-20px; ">
</p>
<div class="clear"></div>
</div>
<div class="w285">
<p class="title">还不是ChinaUnix会员？立即免费注册！</p>

<p class="mt12 tr"><input type="button" value="注 册"
class="button1"
onclick="javascript:window.location.href='/Register'"/></p>

<dl class="lh18 mt10">
<dt class="bold">为什么要注册？</dt>
<dd>
您只有注册成为ChinaUnix会员，才可以登录论坛、博客发言交流，并可以享用ChinaUnix的各项服务。
</dd>
</dl>
</div>



<div class="forget">

<p class="title">忘记密码或ID</p>
<p class="con">如果你忘记了你的密码，请在这里找回密码。</p>

<p class="tr mt8"><input type="button" value="找回密码"
class="button1"
onclick="javascript:window.location.href='/ForgotPassword'"/></p>

</div>

</form>

there is form in it.
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