简单问题　快来看看！！！

在Temp.asp文件中有如下代码！
<?xml version="1.0" encoding="Shift_JIS"?>
<%
Response.Write "<!DOCTYPE AttributeCodeList SYSTEM ""AttributeCodeList.dtd"">"
Response.Write "<AttributeCodeList Type=""Code"" Version=""1.0"">"
Response.Write "<TypeList Count=""0"">"
Response.Write "</TypeList>"
Response.Write "<PrefList Count=""0"">"
Response.Write "</PrefList>"
Response.Write "</AttributeCodeList>"
%>

AttributeCodeList.dtd文件中代码如下：
<!ELEMENT AttributeCodeList ((TypeList, PrefList)| ErrInfo)>
<!ATTLIST AttributeCodeList
Type (Code | Err) "Code"
Version CDATA "1.0"
>

<!ELEMENT TypeList (CodeData*)>
<!ATTLIST TypeList
Count CDATA #REQUIRED
>

<!ELEMENT PrefList (CodeData*)>
<!ATTLIST PrefList
Count CDATA #REQUIRED
>

<!ELEMENT CodeData EMPTY>
<!ATTLIST CodeData
Code CDATA #REQUIRED
Name CDATA #REQUIRED
>

<!ELEMENT ErrInfo EMPTY>
<!ATTLIST ErrInfo
Code CDATA #REQUIRED
Description CDATA #IMPLIED
>

为什么Asp文件不能显示？？？？