Ext.onReady(function () {    Ext.create(‘Ext.tab.Panel‘, {        title: ‘Ext.tab.Panel 示例‘,        frame: true,        height: 150,        width: 300,        activeTab: 1,        renderTo: ‘content‘,        items: [            { title: ‘1‘, html: ‘1‘ },            { title: ‘2‘, html: ‘2‘ },            { title: ‘3‘, html: ‘3‘ }        ]    });});

Ext.onReady(function () {    var tabPanel= Ext.create(‘Ext.tab.Panel‘, {        title: ‘Ext.tab.Panel 示例‘,        frame: true,        height: 150,        width: 300,        activeTab: 1,        renderTo: ‘content‘,        items: [            { title: ‘1‘, html: ‘1‘ },            { title: ‘2‘, html: ‘2‘ },            { title: ‘3‘, html: ‘3‘ }        ],        buttons: [{            text: ‘添加‘,            handler:addTabPage        }]    });    function addTabPage() {        var index = tabPanel.items.length + 1;        var tabPage = tabPanel.add({            title: index,            html: index,            closable:true        });        tabPanel.setActiveTab(tabPage);    }});