update

app/Models/CourseSign.php

@@ -136,10 +136,10 @@ class CourseSign extends SoftDeletesModel
                 $query->whereIn('course_id', $course_ids);
             }
         })->whereNotIn('status', [4, 5])->get();
-        $user = User::whereIn('id', $courseSignByType->pluck('user_id'));
+        $user = User::whereIn('id', $courseSignByType->pluck('user_id'))->groupBy('mobile')->get();
         if ($retList) {
             // 列表
-            return $user->groupBy('mobile')->get();
+            return $user;
         } else {
             // 统计数据
             return $user->count();