修改c端接口：获取头条新闻的接口；

app/JsonRpc/NewsService.php

@@ -325,19 +325,19 @@ class NewsService implements NewsServiceInterface
             case 1:
             case 2:
             case 3:
-            case 6:
+            case 6:             //1.头条资讯;2.轮播图;3.推荐图;6.今日热点
                 $query = Article::where($where)
                 ->where('level','like','%'.$data['level'].'%')
                 ->orderBy('updated_at','desc');
                 break;
-            case 4:
+            case 4:             //最新资讯
+                $query = Article::where($where)->orderBy('updated_at','desc');
+                break;
+            case 5:             //资讯推荐
                 $query = Article::where($where)
                 ->where('updated_at', '>', $month);
                 break;
-            case 5:
-                $query = Article::where($where)->orderBy('updated_at','desc');;
-                break;
-            case 7:
+            case 7:             //资讯分类
                 if(isset($data['id']) && !empty($data['id'])){
                     $keyword = Article::where('id', $data['id'])->value('keyword');
                     $keywordArray = explode(',', $keyword);