创建模型，设置id

 1 /** 
 2          * 创建模型，设置id
 3          */  
 4          Ext.onReady(function(){
 5              Ext.define(‘Person‘,{
 6                 extend:‘Ext.data.Model‘,
 7                 idProperty:‘personId‘,
 8                 fields:[
 9                     {name:‘name‘,type:‘string‘},
10                     {name:‘age‘,type:‘int‘}
11                 ]
12             });
13             var person1 = new Person({
14                 personId:‘person1‘,
15                 name:‘zhouhai‘,
16                 age:12,
17             });
18             var person2 = new Person({
19                 personId:‘person2‘,
20                 name:‘zhouhai‘,
21                 age:12,
22             });
23             //这个地方还不能 直接的person.name
24             //person.set({name:‘hello‘});
25 
26             //alert(person.get(‘name‘));
27             console.log(person1);
28 
29             console.log(person2);
30         });