diff --git a/niucloud/app/api/controller/apiController/Statistics.php b/niucloud/app/api/controller/apiController/Statistics.php
index ad4fe7d9..19e6c2e2 100644
--- a/niucloud/app/api/controller/apiController/Statistics.php
+++ b/niucloud/app/api/controller/apiController/Statistics.php
@@ -30,6 +30,7 @@ class Statistics extends BaseApiService
     {
         $personnel_id = $request->param('personnel_id','');//员工表id
         $role_key_arr = $request->param('role_key_arr','');//array 角色key
+        //字符转数组
         $role_key_arr = explode(',',$role_key_arr);
         if(empty($personnel_id)|| empty($role_key_arr)){
             return fail('缺少参数');