摘要：
MVC模式：M(Model):Encapsulates the application state封装应用程序状态Exposes the application functionality暴露应用程序功能Notifies the View of changes报告视图的变化Responds to state queries (from the View)响应状态的改变V(View)Renders the Model渲染模型Receives update notifications from the Model从模型接收变化消息Sends user input to the Controller 阅读全文
