(function(){
    Ext.onReady(function(){
        Ext.QuickTips.init();
        Ext.create('Ext.grid.Panel',{
            title:'grid DEMO',
            width:'600',
            height:'300',
            columns:[
                {text:'name',dataIndex:'name'},
                {text:'age',dataIndex:'age'},
                {text:'email',dataIndex:'email'}
            ],
            renderTo: Ext.getBody(),
            store: Ext.data.StoreManager.lookup('s_user')
            
        });
    });
})();