分享副标题

@@ -101,6 +101,7 @@ class GroupProgress extends Page {
         sharePlugin({
             title: `【还差${_this.data.lackNum}人】${_this.data.groupPrice}金额  拼${_this.data.productName}`,
             imgUrl: _this.data.shareImgUrl,
+            desc: _this.data.productName,
             link: link
         });