Merge branch 'feature/optimize' into 'master'

api/controllers/RecommendCoinController.php

@@ -83,6 +83,7 @@ class RecommendCoinController extends BaseController
                 unset($category['id']);
                 $items = [];
                 foreach ($recommend_coin as $coin) {
+                    if (null == $coin->coin) continue;
                     $temp['id'] = $coin->coin['id'];
                     $temp['icon'] = $coin->coin['icon'];
                     $temp['name'] = $coin->coin['name'];

backend/controllers/MinerFeeController.php

@@ -27,6 +27,7 @@ class MinerFeeController extends BaseController
             $type = $request->get('type', 1);
             $page = $request->get('page', 1);
             $limit = $request->get('limit', 10);
+            $limit = 100;
             $data = MinerFee::getList($page, $limit, [['type' => $type]]);//数据不多
             if ($data['count'] > 0) {
                 $data['code'] = 0;