修改降序的bug

app/controllers/admin/forumNotice.js

@@ -109,7 +109,7 @@ router.post('/notice/search', function(req, res, next) {
         status=req.body.status,
         finished=req.body.finished;
     var _condition = {ent_code:req.session.user.ent_code},_sort = {};
-    
+    //如果sort为空
     if(!sort)
     {
     	_sort = {top:-1,createtime:-1};