add niutongshe page

app/service/course/v5/institution.js

@@ -310,26 +310,26 @@ class InstitutionSubService extends Service {
   // 获取牛通社首页
   async getNiutongshe() {
     const ret = {
-      banner: '',
+      banner: 'http://51shequ.oss-cn-hangzhou.aliyuncs.com/image/catalog/qxk_zxkc/banner/%E7%89%9B%E9%80%9A%E7%A4%BE%E9%A1%B5%E9%9D%A2banner.png',
       list: [
         {
-          class_id: 1,
-          image: '',
+          class_id: 500,
+          image: 'http://51shequ.oss-cn-hangzhou.aliyuncs.com/image/catalog/qxk_zxkc/banner/pic_02.png',
           title: '动力拼音',
           sub_title: '轻松掌握声母韵母拼读108 个高频音节',
         }, {
-          class_id: 2,
-          image: '',
+          class_id: 500,
+          image: 'http://51shequ.oss-cn-hangzhou.aliyuncs.com/image/catalog/qxk_zxkc/banner/pic_01.png',
           title: '闪卡识字',
           sub_title: '联想图像情景学习法入学即能识千字',
         }, {
-          class_id: 3,
-          image: '',
+          class_id: 500,
+          image: 'http://51shequ.oss-cn-hangzhou.aliyuncs.com/image/catalog/qxk_zxkc/banner/pic_03.png',
           title: '魔数思维',
           sub_title: '3大模块100道题培养抽象 逻辑思维力',
         }, {
-          class_id: 4,
-          image: '',
+          class_id: 500,
+          image: 'http://51shequ.oss-cn-hangzhou.aliyuncs.com/image/catalog/qxk_zxkc/banner/pic_04.png',
           title: '家长课堂',
           sub_title: '协助父母一站式解决孩子早期教育问题',
         },