m

app/Http/Controllers/Admin/StatisticsController.php

         $offset = ($page-1) * $pageSize;
         $city = $request->input('city');
 
-        if($city !== null){
+        if($city){
             $city = str_replace('市', '', $city); //单独搜城市不走redis 不用排序
         }else{
             //从redis取数据
         }
 
         $count = count($result);
-        if($city == null){
+        if(!$city){
             Redis::set($redis_key, json_encode($result));
             //计算今日剩余时间
             $_time = strtotime(date('Y-m-d'). '23:59:59') - time();