如图所示，aspx文件执行后报错XML解析错误：
代码如下：
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="a.aspx.cs" Inherits="a" %>
<!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 runat="server">
<title>Redirect</title>
<style type="text/css">
body,*
{
font-family:Verdana;
font-size:10px;
}
.btn
{
border:outset 1px #dedede;
background:#ddd;
padding:5px 2px;
cursor:pointer;
}
</style>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Button CssClass="btn" ID="btnRedirect" Text="Redirect to b.aspx" runat="server" />
</div>
</form>
</body>
</html>
