anchor.diff:  
     Earlier we added the ability to select a hero from the dashboard.
     We'll do something similar in the `HeroesComponent`.
  -
  +  
     之前我们添加了从仪表盘选择一个英雄的功能。
     我们现在要做的事和`HeroesComponent`中很像。
   
  
positive.code: 
    ### 更新_AppModule_
  
    Now delete the routing configuration from `AppModule` and import the `AppRoutingModule`
    (_both_ with an ES `import` statement _and_ by adding it to the `NgModule.imports` list).
  
    现在，删除`AppModule`中的路由配置，并导入`AppRoutingModule`（使用ES`import`语句导入**并**将它添加到`NgModule.imports`列表）。
  
negative.code:   We don't really expect users to paste a route URL into the address bar.
    We add an anchor tag to the template which, when clicked, triggers navigation to the `HeroesComponent`.
  
    我们当然不会真让用户往地址栏中粘贴路由的URL，而应该在模板中的什么地方添加一个链接标签。点击时，就会导航到`HeroesComponent`组件。
  
    The revised template looks like this:
  
  