郁闷好几天,问个小菜的有关问题

郁闷好几天,问个小菜的问题
我的网站配置(web.config)如下:
<?xml   version= "1.0 "?>
<configuration>
    <location   path= "recivpwd.aspx ">
        <system.web>
        </system.web>
    </location>
    <location   path= "css/style3.css ">
        <system.web>
            <authorization>
            </authorization>
        </system.web>
    </location>
    <appSettings>
        <add   key= "connectionstring "   value= "server=(local);database=diarybook;uid=sa;pwd= "   />
    </appSettings>
    <system.web>
        <httpHandlers>
            <add   verb= "GET "   path= "FtbWebResource.axd "   type= "FreeTextBoxControls.AssemblyResourceHandler,   FreeTextBox "   />
        </httpHandlers>
        <compilation   debug= "true ">
            <assemblies>
                <add   assembly= "System.Design,   Version=2.0.0.0,   Culture=neutral,   PublicKeyToken=B03F5F7F11D50A3A "   />
            </assemblies>
        </compilation>
        <authentication   mode= "Forms ">
            <forms   name= ".ASPXUSERDEMO "   loginUrl= "Login.aspx "   defaultUrl= "default.aspx "   protection= "All "   timeout= "30 "   />
        </authentication>
        <authorization>
            <deny   users= "? "   />
        </authorization>
</configuration>

------解决方案--------------------
xmldoc.DocumentElement.ChildNodes[3].ChildNodes[3].RemoveAll();
xmldoc.DocumentElement.ChildNodes[3].SelectSingleNode( "authorization ").RemoveAll();

这两种方法都可以删除authorization的所有子节点。
另外， xmldoc.save(confile);这一行，应该为 xmldoc.Save(confile);