看了重典的两篇文章

System.Web.Routing入门及进阶　上篇

System.Web.Routing入门及进阶　下篇

仿照其中的进行了操作，发现怎么不都起作用，非常奇怪，搜了好多才找到了解决方案

是在MSDN上找到的，如下：

To configure an ASP.NET Web site project for routing

1. In the application's Web.config file, add the ASP.NET routing assembly to the assemblies element, as shown in the following example:

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   <add assembly="System.Web.Routing, Version=3.5.0.0,Culture=neutral,PublicKeyToken=31BF3856AD364E35"/>

2. If the application runs under IIS 6.0 or IIS 7.0 Classic mode, add the UrlRoutingModule class to the httpModules element, as shown in the following example:

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   <httpModules><add name="UrlRoutingModule"type="System.Web.Routing.UrlRoutingModule,System.Web.Routing,Version=3.5.0.0,Culture=neutral,PublicKeyToken=31BF3856AD364E35"/></httpModules>

3. If the application runs under IIS 7.0 Integrated mode, add the UrlRoutingModule class to the modules element, as shown in the following example:

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   <system.webServer><modules><remove name="UrlRoutingModule" /><add name="UrlRoutingModule"type="System.Web.Routing.UrlRoutingModule,System.Web.Routing,Version=3.5.0.0,Culture=neutral,PublicKeyToken=31BF3856AD364E35"/></modules></system.webServer>

4. If the application runs under IIS 7.0 Integrated mode, add the UrlRoutingHandler class to the handlers element as shown in the following example:

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   <system.webServer><handlers><add name="UrlRoutingHandler"preCondition="integratedMode"verb="*"path="UrlRouting.axd"type="System.Web.HttpForbiddenHandler,System.Web, Version=2.0.0.0,Culture=neutral,PublicKeyToken=b03f5f7f11d50a3a" /></handlers></system.webServer>

需要在web.config中进行以上配置

一般的教程中只提到了1和2

1是必须的，而2是针对IIS的经典模式的

而我用的是IIS7的集成模式

所以需要进行3和4的配置，按照3和4进行了操作以后

就成功了！