Vant实现预览富文本图片

npm install weixin-js-sdk

  <div class="rich" v-html="synopsis" @click="getpreview($event)"></div>
<script>
import wx from "weixin-js-sdk";
  getpreview(e) {
     if (e.target.tagName == "IMG") {
       wx.previewImage({
         current: e.target.src,
         urls: [e.target.src]
       });
     }
 }
</script>

<script>
import { ImagePreview } from "vant";
  getpreview(e) {
     if (e.target.tagName == "IMG") {
   		 ImagePreview({
          images: [e.target.src],
          closeOnPopstate: true //页面回退关闭预览
        });
     }
 }
</script>