anchor.diff:  
     在所有使用`templateUrl`或者`styleUrls`来获取模板或样式的例子组件都被转换为**相对模块**的URL。
     我们添加了`moduleId: module.id`到它们的`@Component`元数据。
  +  
     This change is a requirement for compilation with AOT compiler when the app loads
     modules with SystemJS as the samples currently do.
   
  
positive.code:   [StyleGuide](style-guide.html) explains recommended conventions for Angular modules (NgModule).
  
    [StyleGuide](style-guide.html)解释了我们为Angular模块（NgModule）而推荐的约定。
    Barrels now are far less useful and have been removed from the style guide;
    they remain valuable but are not a matter of Angular style.
    Also relaxed the rule that discouraged use of the `@Component.host` property.
  
negative.code:   But it's also good in its own right. 
    It helps clearly separate app code from setup and configuration files.
    
    所有的文档范例都已经向Angular CLI的默认文件夹结构看齐了。
    这是把范例迁移到Angular CLI过程中的一步。
    不过也不仅是为了迁移，它确实能帮我们把应用代码从环境代码和配置代码中分离出来。
  
    All samples now have a `src/` folder at the project root.
  