update

app/Http/Controllers/Admin/CourseContentCheckController.php

@@ -141,9 +141,10 @@ class CourseContentCheckController extends BaseController
                         }
                     })->first();
                 // 是否存在courseContentCheck
-                $item['course_content_check'] = $courseContentCheck;
+                $item['course_content_check_created_at'] = '';
                 if ($courseContentCheck) {
                     $item['course_content_check_text'] = '已签到';
+                    $item['course_content_check_created_at'] = $courseContentCheck->created_at;
                 } else {
                     $item['course_content_check_text'] = '未签到';
                 }