diff --git a/app/Controller/Api/V1/ContactsController.php b/app/Controller/Api/V1/ContactsController.php
index fe91d36..8e72a84 100644
--- a/app/Controller/Api/V1/ContactsController.php
+++ b/app/Controller/Api/V1/ContactsController.php
@@ -129,7 +129,7 @@ class ContactsController extends CController
         ]);
 
         $user_id = $this->uid();
-        $isTrue  = $this->service->editRemark($user_id, intval($params['friend_id']), $params['remarks']);
+        $isTrue = $this->service->editRemark($user_id, intval($params['friend_id']), $params['remarks']);
         if (!$isTrue) {
             return $this->response->fail('备注修改失败！');
         }
diff --git a/app/Traits/PagingTrait.php b/app/Traits/PagingTrait.php
index c70c7ac..8eacce0 100644
--- a/app/Traits/PagingTrait.php
+++ b/app/Traits/PagingTrait.php
@@ -17,9 +17,9 @@ trait PagingTrait
      * @param int $page_size 分页大小
      * @return int 分页总数
      */
-    protected function getPagingTotal(int $total, int $page_size)
+    protected function getPagingTotal(int $total, int $page_size): int
     {
-        return ($total === 0) ? 0 : (int)ceil((int)$total / (int)$page_size);
+        return ($total === 0) ? 0 : (int)ceil($total / $page_size);
     }
 
     /**
@@ -32,7 +32,7 @@ trait PagingTrait
      * @param array $params    额外参数
      * @return array
      */
-    protected function getPagingRows(array $rows, int $total, int $page, int $page_size, array $params = [])
+    protected function getPagingRows(array $rows, int $total, int $page, int $page_size, array $params = []): array
     {
         return array_merge([
             'rows'       => $rows,
diff --git a/app/Traits/StaticInstance.php b/app/Traits/StaticInstance.php
index 71fc89b..3492379 100644
--- a/app/Traits/StaticInstance.php
+++ b/app/Traits/StaticInstance.php
@@ -1,4 +1,5 @@
 <?php
+declare(strict_types=1);
 
 namespace App\Traits;
 
diff --git a/app/helper.php b/app/helper.php
index a36aa51..0f8ba2f 100644
--- a/app/helper.php
+++ b/app/helper.php
@@ -15,13 +15,15 @@ use Swoole\Websocket\Frame;
 use Swoole\WebSocket\Server as WebSocketServer;
 use Hyperf\Utils\Str;
 use Hyperf\Redis\Redis;
+use Psr\Container\ContainerInterface;
+use Psr\Log\LoggerInterface;
 
 /**
  * 容器实例
  *
- * @return \Psr\Container\ContainerInterface
+ * @return ContainerInterface
  */
-function di()
+function di(): ContainerInterface
 {
     return ApplicationContext::getContainer();
 }
@@ -98,9 +100,9 @@ function stdout_log()
  * 文件日志
  *
  * @param string $name
- * @return \Psr\Log\LoggerInterface
+ * @return LoggerInterface
  */
-function logger(string $name = 'APP')
+function logger(string $name = 'APP'): LoggerInterface
 {
     return di()->get(LoggerFactory::class)->get($name);
 }
@@ -190,7 +192,7 @@ function get_media_url(string $path)
  * @param array  $filesize 图片文件大小信息
  * @return string
  */
-function create_image_name(string $ext, array $filesize)
+function create_image_name(string $ext, array $filesize): string
 {
     return uniqid() . Str::random() . '_' . $filesize[0] . 'x' . $filesize[1] . '.' . $ext;
 }
@@ -277,7 +279,7 @@ function push_redis_subscribe(string $chan, $message)
  * @param string $ext 文件后缀名
  * @return string
  */
-function create_random_filename(string $ext)
+function create_random_filename(string $ext): string
 {
     $ext = $ext ? '.' . $ext : '';
     return Str::random(10) . uniqid() . $ext;