Developing rich Internet applications (RIAs), web applications that look and function like traditional desktop applications, can often be a complex and difficult process. Ensuring your application looks right and works as expected is not easy. Initi
ext 初级入门 学习 一、获取元素（Getting Elements） 1.Ext.get var el = Ext.get('myElementId');//获取元素，等同于document.getElementById('myElementId');//会缓存 2. Ext.fly var el = Ext.fly('myElementId')//不需要缓存。 注：享元模式（Flyweight Design Pattern）是一种节省内存的模式，该模式的大概原理是建立单个全体对象然后不断
前面写的get()和query()我都省略参数了，先看看文档中的函数原型： Ext.get( Mixed el ) : Element Parameters: el : Mixed The id of the node, a DOM Node or an existing Element. Returns: Element The Element object Ext.query( String path, [Node root] ) : Array Parameters: path : Str
