anchor.diff:    [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.
  
positive.code: 
    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.
  
  
negative.code:   The `package.json` installs `@types/angular` and several `@types/angular-...`
    packages in support of upgrade; these are not needed for pure Angular development.
  
    "[从AngularJS升级](upgrade.html)"指南反映了这个变化。
    `package.json`安装`@types/angular`和一些`@types/angular-...`包来支持升级。它们在纯Angular开发中是不需要的。
  
    ## "Template Syntax" explains two-way data binding syntax (2016-10-20)
  