首页默认考试列表

@@ -80,24 +80,21 @@ class Index extends Api
                 ->field('a.id,CONCAT(b.nickname,a.nickname) name,a.nickname,a.exam_time')
                 ->order('a.exam_time asc')
                 ->select();
-            foreach ($exam_list as &$v) {
-                $countdown = strtotime(date('Y-m-d',$v['exam_time'])) - strtotime(date('Y-m-d'));
-                $countdown = $countdown/86400;
-                $v['countdown'] = $countdown > 0 ? $countdown : 0;
-            }
-            $exam = $exam_list[0];
         }else{
-            $exam_list = [];
-            $exam = Exam::alias('a')
+            $exam_list = Exam::alias('a')
                 ->join('mobile_exam b','b.id = a.pid')
                 ->where('a.pid','>',0)
                 ->field('a.id,CONCAT(b.nickname,a.nickname) name,a.nickname,a.exam_time')
                 ->order('a.exam_time asc')
-                ->find();
-            $countdown = strtotime(date('Y-m-d',$exam['exam_time'])) - strtotime(date('Y-m-d'));
+                ->limit(1)
+                ->select();
+        }
+        foreach ($exam_list as &$v) {
+            $countdown = strtotime(date('Y-m-d',$v['exam_time'])) - strtotime(date('Y-m-d'));
             $countdown = $countdown/86400;
-            $exam['countdown'] = $countdown > 0 ? $countdown : 0;
+            $v['countdown'] = $countdown > 0 ? $countdown : 0;
         }
+        $exam = $exam_list[0];
         // 轮播图
         $banner_list = IndexBanner::order('createtime desc')->field('id,image,type,course_id,news_id')->select();
         // 消息