打击来看看，为什么post过来的数据为空

Question

代码没有问题在if里面echo['txtUserName']
在else里面echo['txtUserPwd']看看输出什么

Answer 1

<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。<meta http-equiv="content-type" content="text/html; charset=utf-8">
<form method="post" action="server.php" id="form1" name='form1'>
    <div class="container">
        <div class="content">
            <div class="bt"><h1>WELCOME</h1><span>即将进入后台管理系统……</span></div>
            <div class="logo"></div>
            <div class="name">
                <ul>
                    <li><span>用户名：</span><input name="txtUserName" type="text" id="txtUserName" class="login_input required" /></li>
                    <li><span>密  码：</span><input name="txtUserPwd" type="password" id="txtUserPwd" class="login_input required" /></li>
                    <li class="yzm"><span>验证码：</span><input name="txtCode" type="text" maxlength="6" id="txtCode" class="login_input required" />
                        &nbsp;&nbsp;&nbsp;
                        <img src="/Thinkphp/momuadmin.php/Public/code"   alt="点击切换验证码" title="点击切换验证码" style=" margin-top:5px; vertical-align:top;cursor:pointer;"onclick="ToggleCode(this, '/Thinkphp/momuadmin.php/Public/code');
                                return false;"  />
                    </li>
                </ul>
                <div class="ok">
                    <input type="submit" name="btnSubmit" value="登 录" id="btnSubmit" class="login_btn" /><br/>
                </div><br/>
            </div>
        </div>
    </div>
    <div class="footer">
        <div class="footbox">Copyright 1998 - 2013 MOMU. All Rights Reserved. <a href="#" target="_blank" style="color:#FFF;"></a> 版权所有</div>
    </div>
    </div>
</form>
server.php<?php
$username = $_POST['txtUserName'];
$userpwd = $_POST['txtUserPwd'];
$code = $_POST['txtCode'];echo $username;
echo $userpwd;
echo $code;
?>