fix limit num

@@ -23,7 +23,7 @@ const headerModel = require('../../../doraemon/models/header');
 
 const handleStaticUrl = require(`${global.utils}/parameter`).fullParamToMinPath;
 
-const limitNum = 60; // 商品每页显示数目
+const limitNum = 40; // 商品每页显示数目
 
 // 下一页图片
 const nextPageImg = '//img10.static.yhbimg.com/product/2014/01/15/11/01fa01614784f6239760f1b749663016f1.jpg?imageMogr2/thumbnail/235x314/extent/235x314/background/d2hpdGU=/position/center/quality/90'; // eslint-disable-line
@@ -544,11 +544,14 @@ function getSalebreakingYardsData(params, channel) {
  * @returns {*|Promise.<TResult>}
  */
 function getSaleSpecialData(id, params, channel) {
-    const limit = params.limit ? params.limit - 1 : limitNum - 1;  // 最后一个商品是翻页
     const page = params.page || 1;
     const defaultParam = {specialsale_id: id};
     const baseUrl = '/sale/special';
 
+    params.limit = params.limit || limitNum;
+
+    const limit = params.limit - 1;  // 最后一个商品是翻页
+
     return this.saleApi.getSaleSpecialAsync(id).then(special => {
         let resData = {
                 latestWalk: 6