清除转盘中的所有元素-Sencha

carousel = new Ext.Carousel({
    fullscreen: true,
    defaults: {
        cls: \'carousel-item\'
    },
    items: [{
            id:\'tab-1\',
            html: \'\',
            cls: \'card card1\'
        },{
            id:\'tab-2\',
            html: \'<p>Clicking on either side of the indicators below</p>\',
            cls: \'card card2\'
        },{
            id:\'tab-3\',
            html: \'Card #3\',
            cls: \'card card3\'
        }]
});