diff --git a/app/admin/common.php b/app/admin/common.php
index 8f41f1e..82e0063 100644
--- a/app/admin/common.php
+++ b/app/admin/common.php
@@ -27,14 +27,14 @@ if (!function_exists('auth_is_exit')) {
 
 if (!function_exists('remove_cache')) {
     /**
-     * 删除缓存
+     * 删除缓存文件
      * @param string $path
      * @return bool
      * @throws \Psr\SimpleCache\InvalidArgumentException
      */
     function remove_cache(string $path): bool
     {
-        $res = true;
+        $res = false;
         if (is_dir($path)) {
             if ($handle = opendir($path)) {
                 while (false !== ($item = readdir($handle))) {
@@ -51,7 +51,6 @@ if (!function_exists('remove_cache')) {
     }
 }
 
-
 if (!function_exists('to_int_array')) {
     /**
      * 字符串数组转int数组
@@ -112,7 +111,7 @@ if (!function_exists('get_dir')) {
     function get_dir($dir): mixed
     {
         $dirArray[] = NULL;
-        if (false != ($handle = opendir($dir))) {
+        if (($handle = opendir($dir))) {
             $i = 0;
             while (false !== ($file = readdir($handle))) {
                 //去掉"“.”、“..”以及带“.xxx”后缀的文件
diff --git a/app/admin/controller/Admin.php b/app/admin/controller/Admin.php
index 22d219f..cc7a144 100644
--- a/app/admin/controller/Admin.php
+++ b/app/admin/controller/Admin.php
@@ -55,17 +55,19 @@ class Admin extends AuthController
             ['status', ''],
             ['page', 1],
             ['limit', 20],
-        ]);
+        ],$request);
         return app("json")->layui(aModel::systemPage($where));
     }
 
     /**
      * 添加账号
-     * @param Request $request
      * @return string
+     * @throws DataNotFoundException
+     * @throws DbException
      * @throws FormBuilderException
+     * @throws ModelNotFoundException
      */
-    public function add(Request $request): string
+    public function add(): string
     {
         $form = array();
         $form[] = Elm::input('username', '登录账号')->col(10);
@@ -188,11 +190,10 @@ class Admin extends AuthController
 
     /**
      * 修改密码
-     * @param Request $request
      * @return string
      * @throws \Exception
      */
-    public function pwd(Request $request): string
+    public function pwd(): string
     {
         return $this->fetch();
     }
@@ -207,7 +208,7 @@ class Admin extends AuthController
         $data = Util::postMore([
             ['oldpwd', ''],
             ['newpwd', '']
-        ]);
+        ],$request);
         if ($data['oldpwd'] == '' || $data['newpwd'] == '') return app("json")->fail("参数有误，新旧密码为空！");
         $adminInfo = aModel::find($this->adminId);
         if ($adminInfo['password'] == md5(md5($data['oldpwd']))) return aModel::update(['password' => md5(md5($data['newpwd']))], ['id' => $this->adminId]) ? app("json")->success("操作成功") : app("json")->fail("操作失败");
@@ -230,7 +231,7 @@ class Admin extends AuthController
      * @param Request $request
      * @return mixed
      */
-    public function changProfile(Request $request)
+    public function changProfile(Request $request): mixed
     {
         $data = Util::postMore([
             ['nickname', ''],
diff --git a/app/admin/extend/FormBuilder.php b/app/admin/extend/FormBuilder.php
index 608ca42..9b89a64 100644
--- a/app/admin/extend/FormBuilder.php
+++ b/app/admin/extend/FormBuilder.php
@@ -17,10 +17,10 @@ class FormBuilder
      * 生成表单
      * @param $rule
      * @param $url
-     * @return string
+     * @return string|IviewForm
      * @throws FormBuilderException
      */
-    public static function make_post_form($rule, $url)
+    public static function make_post_form($rule, $url): string|IviewForm
     {
         $form = new IviewForm($url);
         $form->setMethod('POST');
diff --git a/app/admin/model/AdminAuth.php b/app/admin/model/AdminAuth.php
index 6342237..f226b51 100644
--- a/app/admin/model/AdminAuth.php
+++ b/app/admin/model/AdminAuth.php
@@ -164,7 +164,7 @@ class AdminAuth extends BaseModel
     public static function myOptions(array $data, &$list, $num = 0, $clear = true)
     {
         foreach ($data as $k => $v) {
-            $list[] = ['value' => $v['id'], 'label' => self::cross($num) . $v['name']];
+            $list[] = ['value' => $v['id'], 'label' => cross($num) . $v['name']];
             if (is_array($v['children']) && !empty($v['children'])) {
                 self::myOptions($v['children'], $list, $num + 1, false);
             }
@@ -186,21 +186,6 @@ class AdminAuth extends BaseModel
         return $list;
     }
 
-    /**
-     * 横线
-     * @param int $num
-     * @return string
-     */
-    public static function cross(int $num = 0): string
-    {
-        $str = "";
-        if ($num == 1) $str .= "|--";
-        elseif ($num > 1) for ($i = 0; $i < $num; $i++)
-            if ($i == 0) $str .= "|--";
-            else $str .= "--";
-        return $str . " ";
-    }
-
     /**
      * 生成treeData
      * @param int $pid
diff --git a/app/admin/model/AdminLog.php b/app/admin/model/AdminLog.php
index 680340c..a8a1002 100644
--- a/app/admin/model/AdminLog.php
+++ b/app/admin/model/AdminLog.php
@@ -25,7 +25,7 @@ class AdminLog extends BaseModel
      */
     public static function saveLog(array $adminInfo, string $module, string $controller, string $action): bool
     {
-        return self::create([
+        return (bool)self::create([
             'admin_id' => $adminInfo['id'],
             'admin_name' => $adminInfo['username'],
             'module' => $module,
@@ -34,7 +34,7 @@ class AdminLog extends BaseModel
             'ip' => request()->ip(),
             'create_time' => time(),
             'user_agent' => substr(request()->server('HTTP_USER_AGENT'), 0, 255),
-        ]) ? true : false;
+        ]);
     }
 
     /**
@@ -43,7 +43,7 @@ class AdminLog extends BaseModel
      * @return array
      * @throws DbException
      */
-    public static function systemPage($where)
+    public static function systemPage($where): array
     {
         $model = new self;
         $model = $model->order("id desc");
diff --git a/app/common/model/Nav.php b/app/common/model/Nav.php
index 3cf75b8..40464c8 100644
--- a/app/common/model/Nav.php
+++ b/app/common/model/Nav.php
@@ -67,7 +67,7 @@ class Nav extends BaseModel
     public static function myOptions(array $data, &$list, $num = 0, $clear = true)
     {
         foreach ($data as $k => $v) {
-            $list[] = ['value' => $v['id'], 'label' => self::cross($num) . $v['title']];
+            $list[] = ['value' => $v['id'], 'label' => cross($num) . $v['title']];
             if (is_array($v['children']) && !empty($v['children'])) {
                 self::myOptions($v['children'], $list, $num + 1, false);
             }
@@ -89,21 +89,6 @@ class Nav extends BaseModel
         return $list;
     }
 
-    /**
-     * 横线
-     * @param int $num
-     * @return string
-     */
-    public static function cross(int $num = 0): string
-    {
-        $str = "";
-        if ($num == 1) $str .= "|--";
-        elseif ($num > 1) for ($i = 0; $i < $num; $i++)
-            if ($i == 0) $str .= "|--";
-            else $str .= "--";
-        return $str . " ";
-    }
-
     /**
      * 生成单个节点
      * @param $id
diff --git a/app/index/common.php b/app/index/common.php
index 88d72cb..7bdb24f 100644
--- a/app/index/common.php
+++ b/app/index/common.php
@@ -23,7 +23,7 @@ use think\facade\Db;
  * @param $len
  * @return string
  */
-function cn_substr($str, $len)
+function cn_substr($str, $len): string
 {
     return mb_substr($str, 0, $len, 'utf-8');
 }
@@ -31,7 +31,7 @@ function cn_substr($str, $len)
 /**
  * 过滤html标签
  */
-function html2text($str)
+function html2text($str): string
 {
     return strip_tags($str);
 }
@@ -1180,7 +1180,7 @@ function tpl_get_nav($type, $typeId, $row = 100, $where = '', $orderby = '')
 function get_nav($x, $field = false)
 {
     if (!$x) {
-        throw new Exception('请指定要获取的栏目导航id！');
+        return false;
     }
     //获取缓存的文章菜单
     $list = get_nav_list();
@@ -1213,7 +1213,7 @@ function get_nav_list()
     return $navList;
 }
 
-function get_nav_all()
+function get_nav_all(): array
 {
     $list = get_nav_list();
     $tempArr = array();
@@ -1232,7 +1232,7 @@ function get_nav_all()
  * $pid=父级id
  * $row=获取多少数目
  */
-function get_nav_by_parent($pid, $row)
+function get_nav_by_parent($pid, $row): array
 {
     $list = get_nav_list();
     $x = 1;