<image class="img1" :class="[{‘img1‘:index == 0},{‘img2‘:index == 1},{‘img3‘:index == 2}]" :src="avtUrl" lazy-load="true" mode="aspectFill" v-for="(avtUrl, index) in imgList.UserImgList" :key="index"> </image>
:class="[{‘类名‘:条件},{‘类名‘:条件},{‘类名‘:条件}]"
为不同条件的image绑定不同的样式
原文：https://www.cnblogs.com/XiaoYEBLog/p/12885551.html