修复了一些问题

assets/js/runtime/weixin-share.js

@@ -15,7 +15,7 @@ tbquire(["weixin-sdk"], function () {
     wx.ready(function () {
         var _title = _data.title || document.title;
         var _link = _data.url || window.location.href;
-        var _desc = _data.desc || $('meta[name="description"]').attr('content');
+        var _desc = _data.desc || jQuery('meta[name="description"]').attr('content');
         var _img = _data.img;
 
         wx.updateTimelineShareData({
@@ -30,4 +30,4 @@ tbquire(["weixin-sdk"], function () {
             imgUrl: _img
         });
     });
-});
+});