add img preview

src/pages/write_off/ym_confirm/ym_confirm.vue

@@ -15,7 +15,7 @@
         </view>
         <view class="yc-photo" v-if="!!orderInfo.user_face">
             <view>照片</view>
-            <image mode="aspectFit" :src="orderInfo.user_face"></image>
+            <image mode="aspectFit" @click="previewImg(orderInfo.user_face)" :src="orderInfo.user_face"></image>
         </view>
         
         <view class="yc-card-mes">
@@ -56,6 +56,9 @@ export default {
         })
     },
     methods: {
+        previewImg(url){
+            uni.previewImage({ urls: [ url ] });
+        },
         confirmBtn: util.debounce(function(){
             let { orderInfo, type } = this;
             servers.post({