anchor.diff:  .l-main-section
   :marked
     ### Overall Structural Guidelines
  -  ### 总体结构原则
  +  ### 总体结构基准线
     <a id="04-06"></a>
     #### Style 04-06
     #### 风格04-06
  
positive.code:   :marked
      **Do** use lower camel case to name properties and methods.
      
      **做** 使用小写驼峰命名法来命名属性和方法。
  
  .s-rule.avoid
    :marked
  
negative.code:   We apply the [Single Responsibility Principle](https:\/\/en.wikipedia.org/wiki/Single_responsibility_principle) to all Components, Services, and other symbols we create. 
    This helps make our app cleaner, easier to read and maintain, and more testable.
    
    我们对我们创建的所有组件、服务和其它标志等，应用[单一职责原则](https:\/\/en.wikipedia.org/wiki/Single_responsibility_principle)。这样能帮助把我们的应用弄的干净、易读、易于维护和易测试。
  
    ### Rule of One
    ### 单一规则
  