📄 login.php
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<?php
require_once('libs/session.inc');
if(!empty($_SESSION['username'])){
die("<center>你已经登陆！是否<a href='userchk.php?action=logout'><font color='red'>注销？</font></a></center>");
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<link rel="stylesheet" type="text/css" href="skin/style.css">
<title>用户登陆</title>
<base target="_self" />
</head>
<body>
<table border="0">
<tr>
<td height="100"></td>
</tr>
</table>
<table align="center" width="54%" border="1" bordercolor="#F5EFEA" cellpadding="4" cellspacing="0">
<tr>
<td width="50%" align="right"><img src="skin/log.gif" border="0" /></td>
<td width="50%">
<form action="userchk.php" method="post">
<table width="100%" cellpadding="2" cellspacing="0">
<tr height="20">
<td></td>
</tr>
<tr>
<td width="27%" align="right">用户名：</td>
<td width="73%"><input name="username" size="15" maxlength="30" class="input0" /></td>
</tr>
<tr>
<td align="right">用户密码：</td><td><input type="password" name="userpwd" size="15" maxlength="30" class="input0" /></td>
</tr>
<tr>
<td align="right">验证码：</td><td><input class="input0" size="4" maxlength="5" name="mycode"><img src="js/code.php" /></td>
</tr>
<tr>
<td height="10"></td>
</tr>
<tr align="center">
<td colspan="2">
<input type="hidden" name="message" value="ok" />
<input type="hidden" name="toindex" value="toindex" />
<input type="image" src="skin/login_but.gif" name="login" /> <a href="user/reg_user.php" target="_parent"><img border=0 src="skin/riger_user.gif"></a></td>
</tr>
</table>
</form>
</td>
</tr>
</table>
</body>
</html>
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