发布网站后，发现无法访问,最后在配置文件上添加一段：

<system.codedom>

<compilers>

<compiler language="c#;cs;csharp" extension=".cs" type="Microsoft.CSharp.CSharpCodeProvider,System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" warningLevel="4">

<providerOption name="CompilerVersion" value="v4.0"/>

<providerOption name="WarnAsError" value="false"/>

</compiler>

<compiler language="vb;vbs;visualbasic;vbscript" extension=".vb" type="Microsoft.VisualBasic.VBCodeProvider, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" warningLevel="4">

<providerOption name="CompilerVersion" value="v4.0"/>

<providerOption name="OptionInfer" value="true"/>

<providerOption name="WarnAsError" value="false"/>

</compiler>

</compilers>

</system.codedom>

并确保Internet Information Services里面的web管理工具跟万维网服务选择启用功能