打击回看看，为什么post过来的数据为空

打击来看看，为什么post过来的数据为空

<br /><form method="post" action="/Thinkphp/admin.php/User/do_login" id="form1" name='form1'><br />            <div class="container"><br />                <div class="content"><br />                    <div class="bt"><h1 id="WELCOME">WELCOME</h1><span>即将进入后台管理系统……</span></div><br />                    <div class="logo"></div><br />                    <div class="name"><br />                        <ul><br />                            <li><span>用户名：</span><input name="txtUserName" type="text" id="txtUserName" class="login_input required" /></li><br />                            <li><span>密  码：</span><input name="txtUserPwd" type="password" id="txtUserPwd" class="login_input required" /></li><br />                            <li class="yzm"><span>验证码：</span><input name="txtCode" type="text" maxlength="6" id="txtCode" class="login_input required" /><br />                                   <br />                                <img src="/static/imghw/default1.png"  data-src="/Thinkphp/momuadmin.php/Public/code"  class="lazy"     alt="点击切换验证码" title="点击切换验证码"   style="max-width:90%"onclick="ToggleCode(this, '/Thinkphp/momuadmin.php/Public/code');<br />                                        return false;"  /><br />                            </li><br />                        </ul><br />                        <div class="ok"><br />                            <input type="submit" name="btnSubmit" value="登 录" id="btnSubmit" class="login_btn" /><br/><br />                        </div><br/><br />                    </div><br />                </div><br />            </div><br />            <div class="footer"><br />                <div class="footbox">Copyright 1998 - 2013 MOMU. All Rights Reserved. <a href="#target="_blank" style="color:#FFF;"</a> 版权所有</div><br />            </div><br />            </div><br />        </form><br />

<br /> public function do_login() {<br />        $username = $_POST['txtUserName'];<br />        $userpwd = $_POST['txtUserPwd'];<br />        $code = $_POST['txtCode'];<br />        if ($code==$_SESSION['verify']) {<br />            $m = M('Manger');<br />            $where['username'] = $username;<br />            $where['userpwd'] = md5($userpwd);<br />            $i = $m->where($where)->count();<br />            if ($i > 0) {<br />                $this->redirect(__URL__ / main);<br />            } else {<br />                $this->error('用户名或密码错误');<br />            }<br />        } else {<br />            var_dump($_POST).'</br>';<br />            //var_dump($_SESSION['verify']);<br />            //$this->error('验证码错误');<br />        }<br />    }<br /><br />

每次都是$_post为空，求教这是为什么
------解决思路----------------------
代码没有问题在if里面echo['txtUserName']
在else里面echo['txtUserPwd']看看输出什么
------解决思路----------------------

<div class="footbox">Copyright 1998 - 2013 MOMU. All Rights Reserved. <a href="#target="_blank" style="color:#FFF;"</a> 版权所有</div>

这里修改为

<div class="footbox">Copyright 1998 - 2013 MOMU. All Rights Reserved. <a href="#" target="_blank" style="color:#FFF;"></a> 版权所有</div>

起了两个文件测试，是可以post并接收数据的。

    

        

            
WELCOME
即将进入后台管理系统……

            

            

                

                    
用户名：

                    
密  码：

                    
验证码：
                           
                        
                    

                

                

                    

                


            

        

    

    

        <div class="footbox">Copyright 1998 - 2013 MOMU. All Rights Reserved. <a href="#" target="_blank" style="color:#FFF;"></a> 版权所有</div>
    

    

登录后复制

server.php

<br /><?php<br />$username = $_POST['txtUserName'];<br />$userpwd = $_POST['txtUserPwd'];<br />$code = $_POST['txtCode'];<br /><br />echo $username;<br />echo $userpwd;<br />echo $code;<br />?><br />