1.
Extjs 布局：布局一定要最后写，才能生效
2.
Ext.defined("My.cool.Class",{address:"ag"})
相当于 function My.cool.Class(){} My.cool.Class.prototype.address="ag";
3.
Ext.apply(t,{age:12})t.age //12ps: t可以是object 或者 function
4.singleton : Boolean直接实例化这个类Ext.define('Logger', { singleton: true, log: function(msg) { console.log(msg); }});
Logger.log('Hello');
转载于:https://www.cnblogs.com/haigui-zx/p/6409649.html
