测试：-公会后台登录修改-歌手等级修改

application/api/model/Level.php

@@ -501,7 +501,6 @@ class Level extends Model
             $return['user']['next_exp'] = $next_exp <= 0 ? 0 : $next_exp;
             $return['user']['next_rights_icon'] = $user_level['rights_icon'];
         }
-
         //获取等级
         // 获取用户当前等级
         $currentUserLevel = $singer['level'];
@@ -512,10 +511,14 @@ class Level extends Model
                 ->limit(3)
                 ->select();
         }elseif($currentUserLevel == $level_last){
+            $limit_s = $level_last-2;
+            if($limit_s < 0){
+                $limit_s = 0;
+            }
             $level = Db::name('vs_singer_level')
                 ->where('deletetime',0)
                 ->order('level', 'asc')
-                ->limit($level_last-2,3)
+                ->limit($limit_s,3)
                 ->select();
         }else{
             $level = Db::name('vs_singer_level')