实现商品详情弹窗图片点击放大功能

pages/buyer/index.wxml

@@ -217,7 +217,7 @@
           <swiper class="goods-image-swiper" indicator-dots="true" indicator-color="rgba(0,0,0,0.3)" indicator-active-color="#1677ff">
             <block wx:for="{{currentGoodsDetail.imageUrls}}" wx:for-item="img" wx:for-index="idx" wx:key="idx" class="goods-image-item">
               <swiper-item>
-                <image src="{{img}}" mode="aspectFill" class="goods-image"></image>
+                <image src="{{img}}" mode="aspectFill" class="goods-image" bindtap="previewImage" data-urls="{{currentGoodsDetail.imageUrls}}" data-index="{{idx}}"></image>
               </swiper-item>
             </block>
           </swiper>