MVC模式的作用？

[IVYGOU]

• The view is responsible for defining and rendering the UI.
• The model manages the application data.
• The controller reacts to view events and user interaction by modifying the view and model.

好处：方便测试

[IVYGOU]

code注意：不能在model中依赖view 例如：在controller中通过DOM操作改变属性。好的方式是使用数据驱动（data binding）。