<van-image width="100%" height="auto" :src="yl" /> //:src="yl" 不对吧 //或者你yl是一个变量通过changeTab changeTab(v){ //点击哪个tab key值 let tabNum = v //拿到tabNum去你的data中去找主键 let arr = this.data.category arr.forEach((item) => { if(item.id==tabNum){ this...