想了解dedecms后台验证码总提示错误的解决办法的相关内容吗，在本文为您仔细讲解的相关知识和一些Code实例，欢迎阅读和指正，我们先划重点：dedecms后台验证码总提示错误的解决办法，下面大家一起来学习吧。
<?
require_once(dirname(__FILE__)."/../include/config_base.php");
require_once(dirname(__FILE__)."/../include/inc_userlogin.php");
if(empty($dopost)) $dopost="";
//--------------------------------
//登录检测
//--------------------------------
if($dopost=="login")
{
if(empty($validate)) $validate=="";
else $validate = strtolower($validate);
if( empty($_SESSION["s_validate"]) ) $svali = "";
else $svali = $_SESSION["s_validate"];
$cuserLogin = new userLogin();
if(!empty($userid)&&!empty($pwd))
{
$res = $cuserLogin->checkUser($userid,$pwd);
//成功登录
if($res==1){
$cuserLogin->keepUser();
if(!empty($gotopage)){
//header("location:$gotopage");
ShowMsg("成功登录，正在转向管理管理主页！",$gotopage);
exit();
}
else{
ShowMsg("成功登录，正在转向管理管理主页！","index.php");
//header("location:index.php");
exit();
}
}
else if($res==-1){
ShowMsg("你的用户名不存在!","");
}
else{
ShowMsg("你的密码错误!","");
}
}//<-密码不为空
else{
ShowMsg("用户和密码没填写完整!","");
}
//<-验证用户
}
?>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>管理系统</title>
<link href="base.css" rel="stylesheet" type="text/css">
</head>
<body style='MARGIN: 0px' bgColor='#ffffff' leftMargin='0' topMargin='0' scroll='no'>
<table width="98%" border="0" align="center" cellpadding="0" cellspacing="0" bordercolor="#111111" style="BORDER-COLLAPSE: collapse">
<tr>
<td width="100%" height="64" background="img/indextitlebg.gif"><img src="img/indextitle.gif" width="250" height="64">
</td>
</tr>
<tr>
<td width="100%" height="20"> </td>
</tr>
<tr>
<td width="100%" height="20" valign="bottom">
<table width="540" border="0" cellspacing="0" cellpadding="0">
<tr>
<td align="right" style="FONT-SIZE: 2pt"> </td>
</tr>
<tr>
<td><IMG height=14 src="img/book1.gif" width=20> 用户登录</td>
</tr>
</table></td>
</tr>
<tr>
<td width="100%" height="1" background="img/sp_bg.gif"></td>
</tr>
<tr>
<td width="100%" height="2"></td>
</tr>
<tr>
<td width="100%" height="136" valign="top">
<form name="form1" method="post" action="login.php">
<input type="hidden" name="gotopage" value="<?if(!empty($gotopage)) echo $gotopage;?>">
<input type="hidden" name="dopost" value="login">
<table width="540" border="0" cellspacing="0" cellpadding="0">
<tr>
<td colspan="2" height="4"></td>
</tr>
<tr>
<td width="156" height="30" align="center"> 用户名：</td>
<td width="384"> <input type="text" name="userid" style="width:150;height:20">
</td>
</tr>
<tr>
<td height="30" align="center"> 密 码： </td>
<td> <input type="password" name="pwd" style="width:150;height:20">
</td>
</tr>
<tr>
<td height="50" colspan="2" align="center"> <input type="button" name="sm1" value="登录" style="background-color:#BAE171;border:1px solid #666666" onClick="this.form.submit();">
<input type="button" name="sm2" value="Power by DedeCms" onClick="window.open('//www.qb5200.com');" style="background-color:#FFFFFF;border:1px solid #DDDDDD;color:#DDDDDD">
</td>
</tr>
</table>
</form></td>
</tr>
<tr>
<td width="100%" height="2" valign="top"></td>
</tr>
</table>
</body>
</html>
