lab控件怎么用js设置背景图片
var height=$("div[widgetname=LABEL1]")[0].style.height $('.fr-label').eq(0).css({"background":"url('/webroot/help/picture/边框小.png') no-repeat","height":height,"background-size":"contain"})//contain适应，cover 填满
背景素材：
1min目标场景问卷
立即参与
