数据类型转换

application/api/controller/Lesson.php

@@ -105,7 +105,7 @@ class Lesson extends Api
             $i_data = [
                 'yeah' =>$year,
                 'month'=>$month,
-                'day'  => $j,
+                'day'  => $j.'',
                 'date' => $idate,
                 'week' => $week,
                 'is_today' => 0,