diff --git a/app/Controller/Api/V1/AuthController.php b/app/Controller/Api/V1/AuthController.php
index 294baea..276a987 100644
--- a/app/Controller/Api/V1/AuthController.php
+++ b/app/Controller/Api/V1/AuthController.php
@@ -1,4 +1,6 @@
 <?php
+declare(strict_types=1);
+
 /**
  * This is my open source code, please do not use it for commercial applications.
  * For the full copyright and license information,
@@ -17,6 +19,7 @@ use Hyperf\HttpServer\Annotation\RequestMapping;
 use App\Model\User;
 use App\Service\UserService;
 use App\Service\SmsCodeService;
+use Psr\Http\Message\ResponseInterface;
 
 /**
  * 授权相关控制器
@@ -38,9 +41,10 @@ class AuthController extends CController
 
     /**
      * 授权登录接口
+     *
      * @RequestMapping(path="login", methods="post")
      */
-    public function login()
+    public function login(): ResponseInterface
     {
         $params = $this->request->inputs(['mobile', 'password', 'platform']);
         $this->validate($params, [
@@ -80,9 +84,10 @@ class AuthController extends CController
 
     /**
      * 退出登录接口
+     *
      * @RequestMapping(path="logout", methods="post")
      */
-    public function logout()
+    public function logout(): ResponseInterface
     {
         $this->guard()->check() && $this->guard()->logout();
 
@@ -91,9 +96,10 @@ class AuthController extends CController
 
     /**
      * 账号注册接口
+     *
      * @RequestMapping(path="register", methods="post")
      */
-    public function register()
+    public function register(): ResponseInterface
     {
         $params = $this->request->all();
         $this->validate($params, [
@@ -126,9 +132,10 @@ class AuthController extends CController
 
     /**
      * 账号找回接口
+     *
      * @RequestMapping(path="forget", methods="post")
      */
-    public function forget()
+    public function forget(): ResponseInterface
     {
         $params = $this->request->inputs(['mobile', 'password', 'sms_code']);
         $this->validate($params, [
@@ -156,7 +163,7 @@ class AuthController extends CController
      * 授权刷新接口
      * @RequestMapping(path="refresh", methods="post")
      */
-    public function refresh()
+    public function refresh(): ResponseInterface
     {
         if ($this->guard()->guest()) {
             return $this->response->fail('token 刷新失败！');
@@ -173,9 +180,10 @@ class AuthController extends CController
 
     /**
      * 发送验证码
+     *
      * @RequestMapping(path="send-verify-code", methods="post")
      */
-    public function sendVerifyCode()
+    public function sendVerifyCode(): ResponseInterface
     {
         $params = $this->request->inputs(['type', 'mobile']);
         $this->validate($params, [
diff --git a/app/Controller/Api/V1/CController.php b/app/Controller/Api/V1/CController.php
index 4bf0828..3966524 100644
--- a/app/Controller/Api/V1/CController.php
+++ b/app/Controller/Api/V1/CController.php
@@ -1,4 +1,6 @@
 <?php
+declare(strict_types=1);
+
 /**
  * This is my open source code, please do not use it for commercial applications.
  * For the full copyright and license information,
@@ -13,6 +15,7 @@ namespace App\Controller\Api\V1;
 use Hyperf\Di\Annotation\Inject;
 use App\Controller\AbstractController;
 use App\Support\Response;
+use App\Model\User;
 
 /**
  * 基类控制器
@@ -32,13 +35,25 @@ class CController extends AbstractController
      *
      * @return int
      */
-    public function uid()
+    public function uid(): int
     {
         $guard = $this->guard();
 
         return $guard->check() ? $guard->user()->getId() : 0;
     }
 
+    /**
+     * 获取登录用户信息
+     *
+     * @return User|null
+     */
+    public function user(): ?User
+    {
+        $guard = $this->guard();
+
+        return $guard->check() ? $guard->user() : null;
+    }
+
     /**
      * 获取授权守卫
      *
diff --git a/app/Controller/Api/V1/ContactsApplyController.php b/app/Controller/Api/V1/ContactsApplyController.php
index 54a5dfa..5200efb 100644
--- a/app/Controller/Api/V1/ContactsApplyController.php
+++ b/app/Controller/Api/V1/ContactsApplyController.php
@@ -1,4 +1,5 @@
 <?php
+declare(strict_types=1);
 
 namespace App\Controller\Api\V1;
 
@@ -33,7 +34,7 @@ class ContactsApplyController extends CController
      * @param UserService $userService
      * @return ResponseInterface
      */
-    public function create(UserService $userService)
+    public function create(UserService $userService): ResponseInterface
     {
         $params = $this->request->inputs(['friend_id', 'remark']);
         $this->validate($params, [
@@ -62,10 +63,11 @@ class ContactsApplyController extends CController
     }
 
     /**
+     * 好友同意接口
+     *
      * @RequestMapping(path="accept", methods="post")
-     * @return ResponseInterface
      */
-    public function accept()
+    public function accept(): ResponseInterface
     {
         $params = $this->request->inputs(['apply_id', 'remark']);
         $this->validate($params, [
@@ -74,7 +76,7 @@ class ContactsApplyController extends CController
         ]);
 
         $user_id = $this->uid();
-        $isTrue  = $this->service->accept($user_id, intval($params['apply_id']), $params['remark']);
+        $isTrue  = $this->service->accept($user_id, (int)$params['apply_id'], $params['remark']);
         if (!$isTrue) {
             return $this->response->fail('处理失败！');
         }
@@ -83,10 +85,11 @@ class ContactsApplyController extends CController
     }
 
     /**
+     * 好友拒绝接口
+     *
      * @RequestMapping(path="decline", methods="post")
-     * @return ResponseInterface
      */
-    public function decline()
+    public function decline(): ResponseInterface
     {
         $params = $this->request->inputs(['apply_id', 'remark']);
         $this->validate($params, [
@@ -94,7 +97,7 @@ class ContactsApplyController extends CController
             'remark'   => 'present|max:20'
         ]);
 
-        $isTrue = $this->service->decline($this->uid(), intval($params['apply_id']), $params['remark']);
+        $isTrue = $this->service->decline($this->uid(), (int)$params['apply_id'], $params['remark']);
         if (!$isTrue) {
             return $this->response->fail('处理失败！');
         }
@@ -102,14 +105,12 @@ class ContactsApplyController extends CController
         return $this->response->success([], '处理成功...');
     }
 
-
     /**
      * 获取联系人申请未读数
-     * @RequestMapping(path="records", methods="get")
      *
-     * @return ResponseInterface
+     * @RequestMapping(path="records", methods="get")
      */
-    public function records()
+    public function records(): ResponseInterface
     {
         $params = $this->request->inputs(['page', 'page_size']);
         $this->validate($params, [
@@ -117,8 +118,8 @@ class ContactsApplyController extends CController
             'page_size' => 'present|integer'
         ]);
 
-        $page      = $this->request->input('page', 1);
-        $page_size = $this->request->input('page_size', 10);
+        $page      = (int)$this->request->input('page', 1);
+        $page_size = (int)$this->request->input('page_size', 10);
         $user_id   = $this->uid();
 
         FriendApply::getInstance()->rem(strval($user_id));
diff --git a/app/Controller/Api/V1/UploadController.php b/app/Controller/Api/V1/UploadController.php
index a067bb5..33b5af3 100644
--- a/app/Controller/Api/V1/UploadController.php
+++ b/app/Controller/Api/V1/UploadController.php
@@ -41,7 +41,7 @@ class UploadController extends CController
      *
      * @return ResponseInterface
      */
-    public function fileStream(Filesystem $filesystem)
+    public function fileStream(Filesystem $filesystem): ResponseInterface
     {
         $fileStream = $this->request->post('fileStream', '');
         if (empty($fileStream)) {
@@ -64,7 +64,7 @@ class UploadController extends CController
      *
      * @return ResponseInterface
      */
-    public function getFileSplitInfo()
+    public function getFileSplitInfo(): ResponseInterface
     {
         $params = $this->request->inputs(['file_name', 'file_size']);
         $this->validate($params, [
@@ -83,7 +83,7 @@ class UploadController extends CController
      *
      * @return ResponseInterface
      */
-    public function fileSubareaUpload()
+    public function fileSubareaUpload(): ResponseInterface
     {
         $file   = $this->request->file('file');
         $params = $this->request->inputs(['name', 'hash', 'ext', 'size', 'split_index', 'split_num']);
diff --git a/app/Controller/Api/V1/UsersController.php b/app/Controller/Api/V1/UsersController.php
index d657f87..28db3ce 100644
--- a/app/Controller/Api/V1/UsersController.php
+++ b/app/Controller/Api/V1/UsersController.php
@@ -1,4 +1,6 @@
 <?php
+declare(strict_types=1);
+
 /**
  * This is my open source code, please do not use it for commercial applications.
  * For the full copyright and license information,
@@ -43,9 +45,9 @@ class UsersController extends CController
      *
      * @return ResponseInterface
      */
-    public function getUserDetail()
+    public function getUserDetail(): ResponseInterface
     {
-        $userInfo = $this->userService->findById($this->uid(), ['mobile', 'nickname', 'avatar', 'motto', 'email', 'gender']);
+        $userInfo = $this->user();
 
         return $this->response->success([
             'mobile'   => $userInfo->mobile,
@@ -53,7 +55,7 @@ class UsersController extends CController
             'avatar'   => $userInfo->avatar,
             'motto'    => $userInfo->motto,
             'email'    => $userInfo->email,
-            'gender'   => $userInfo->gender
+            'gender'   => $userInfo->gender,
         ]);
     }
 
@@ -63,9 +65,9 @@ class UsersController extends CController
      *
      * @return ResponseInterface
      */
-    public function getUserSetting()
+    public function getUserSetting(): ResponseInterface
     {
-        $userInfo = $this->userService->findById($this->uid(), ['id', 'nickname', 'avatar', 'motto', 'gender']);
+        $userInfo = $this->user();
 
         return $this->response->success([
             'user_info' => [
@@ -73,7 +75,7 @@ class UsersController extends CController
                 'nickname' => $userInfo->nickname,
                 'avatar'   => $userInfo->avatar,
                 'motto'    => $userInfo->motto,
-                'gender'   => $userInfo->gender
+                'gender'   => $userInfo->gender,
             ],
             'setting'   => [
                 'theme_mode'            => '',
@@ -91,7 +93,7 @@ class UsersController extends CController
      *
      * @return ResponseInterface
      */
-    public function editUserDetail()
+    public function editUserDetail(): ResponseInterface
     {
         $params = $this->request->inputs(['nickname', 'avatar', 'motto', 'gender']);
         $this->validate($params, [
@@ -114,7 +116,7 @@ class UsersController extends CController
      *
      * @return ResponseInterface
      */
-    public function editAvatar()
+    public function editAvatar(): ResponseInterface
     {
         $params = $this->request->inputs(['avatar']);
         $this->validate($params, [
@@ -134,7 +136,7 @@ class UsersController extends CController
      *
      * @return ResponseInterface
      */
-    public function search()
+    public function search(): ResponseInterface
     {
         $params = $this->request->inputs(['user_id']);
         $this->validate($params, ['user_id' => 'required|integer']);
@@ -152,7 +154,7 @@ class UsersController extends CController
      *
      * @return ResponseInterface
      */
-    public function editUserPassword()
+    public function editUserPassword(): ResponseInterface
     {
         $params = $this->request->inputs(['old_password', 'new_password']);
         $this->validate($params, [
@@ -160,7 +162,7 @@ class UsersController extends CController
             'new_password' => 'required|min:6|max:16'
         ]);
 
-        $userInfo = $this->userService->findById($this->uid(), ['id', 'password', 'mobile']);
+        $userInfo = $this->user();
 
         // 验证密码是否正确
         if (!HashHelper::check($this->request->post('old_password'), $userInfo->password)) {
@@ -180,7 +182,7 @@ class UsersController extends CController
      * @param SmsCodeService $smsCodeService
      * @return ResponseInterface
      */
-    public function editUserMobile(SmsCodeService $smsCodeService)
+    public function editUserMobile(SmsCodeService $smsCodeService): ResponseInterface
     {
         $params = $this->request->inputs(['mobile', 'password', 'sms_code']);
         $this->validate($params, [
@@ -193,12 +195,11 @@ class UsersController extends CController
             return $this->response->fail('验证码填写错误！');
         }
 
-        $user_id = $this->uid();
-        if (!HashHelper::check($params['password'], User::where('id', $user_id)->value('password'))) {
+        if (!HashHelper::check($params['password'], $this->user()->password)) {
             return $this->response->fail('账号密码验证失败！');
         }
 
-        [$isTrue,] = $this->userService->changeMobile($user_id, $params['mobile']);
+        [$isTrue,] = $this->userService->changeMobile($this->uid(), $params['mobile']);
         if (!$isTrue) {
             return $this->response->fail('手机号更换失败！');
         }
@@ -215,7 +216,7 @@ class UsersController extends CController
      *
      * @return ResponseInterface
      */
-    public function editUserEmail()
+    public function editUserEmail(): ResponseInterface
     {
         $params = $this->request->inputs(['email', 'password', 'email_code']);
         $this->validate($params, [
@@ -229,13 +230,11 @@ class UsersController extends CController
             return $this->response->fail('验证码填写错误！');
         }
 
-        $uid           = $this->uid();
-        $user_password = User::where('id', $uid)->value('password');
-        if (!HashHelper::check($params['password'], $user_password)) {
+        if (!HashHelper::check($params['password'], $this->user()->password)) {
             return $this->response->fail('账号密码验证失败！');
         }
 
-        $isTrue = User::where('id', $uid)->update(['email' => $params['email']]);
+        $isTrue = User::where('id', $this->uid())->update(['email' => $params['email']]);
         if (!$isTrue) {
             return $this->response->fail('邮箱设置失败！');
         }
@@ -252,7 +251,7 @@ class UsersController extends CController
      * @param SmsCodeService $smsCodeService
      * @return ResponseInterface
      */
-    public function sendMobileCode(SmsCodeService $smsCodeService)
+    public function sendMobileCode(SmsCodeService $smsCodeService): ResponseInterface
     {
         $params = $this->request->inputs(['mobile']);
         $this->validate($params, [
@@ -288,7 +287,7 @@ class UsersController extends CController
      * @param SendEmailCode $sendEmailCode
      * @return ResponseInterface
      */
-    public function sendChangeEmailCode(SendEmailCode $sendEmailCode)
+    public function sendChangeEmailCode(SendEmailCode $sendEmailCode): ResponseInterface
     {
         $params = $this->request->inputs(['email']);
         $this->validate($params, [
diff --git a/app/Repository/BaseRepository.php b/app/Repository/BaseRepository.php
index 416dc7a..70d51ca 100644
--- a/app/Repository/BaseRepository.php
+++ b/app/Repository/BaseRepository.php
@@ -45,6 +45,16 @@ abstract class BaseRepository
 {
     use RepositoryTrait;
 
+    /**
+     * 获取单例
+     *
+     * @return static
+     */
+    public static function getInstance()
+    {
+        return di()->get(static::class);
+    }
+
     /**
      * 查询单条数据
      *
@@ -96,7 +106,7 @@ abstract class BaseRepository
      * @param int   $size   每页条数
      * @return array
      */
-    final public function paginate(array $where, $fields = ['*'], $page = 1, $size = 15): array
+    final public function paginate(array $where, array $fields = ['*'], int $page = 1, int $size = 15): array
     {
         $this->handleField($fields);
 
diff --git a/app/Repository/ExampleRepository.php b/app/Repository/ExampleRepository.php
index 58ea02f..631c9c0 100644
--- a/app/Repository/ExampleRepository.php
+++ b/app/Repository/ExampleRepository.php
@@ -280,13 +280,6 @@ class ExampleRepository extends BaseRepository
 
     public function where_case2()
     {
-        $rows = $this->get([
-            'id:gt' => 2000,
-        ], ['*'], [0, 2]);
-
-        var_dump($rows);
-
-        return;
         $this->get([
             'id:gt'      => 3000,
             'id:lt'      => 4000,
diff --git a/app/Support/SendEmailCode.php b/app/Support/SendEmailCode.php
index 63b20e1..1226e6b 100644
--- a/app/Support/SendEmailCode.php
+++ b/app/Support/SendEmailCode.php
@@ -54,10 +54,10 @@ class SendEmailCode
     {
         $key = $this->getKey($type, $email);
         if (!$sms_code = $this->getCode($key)) {
-            $sms_code = mt_rand(100000, 999999);
+            $sms_code = (string)mt_rand(100000, 999999);
         }
 
-        $this->setCode($key, $sms_code);;
+        $this->setCode($key, $sms_code);
 
         // ...执行发送(后期使用队列)
         email()->send(