diff --git a/application/admin/controller/User.php b/application/admin/controller/User.php
index 60a4341..b555b54 100644
--- a/application/admin/controller/User.php
+++ b/application/admin/controller/User.php
@@ -204,8 +204,8 @@ class User extends Base {
 
     public function add(){
         if( $this->request->isPost() ){
-            $menuModel = new \app\admin\model\User();
-            $result = $menuModel->allowField(true)->validate(
+            $userModel = new \app\admin\model\User();
+            $result = $userModel->allowField(true)->validate(
                 [
                     'username' => 'require',
                 ],[
@@ -213,7 +213,7 @@ class User extends Base {
                 ]
             )->save($this->request->post());
             if(false === $result){
-                $this->error($menuModel->getError());
+                $this->error($userModel->getError());
             }else{
                 $this->success('操作成功！', url('User/index'));
             }
@@ -262,4 +262,20 @@ class User extends Base {
             $this->result($form, ReturnCode::GET_TEMPLATE_SUCCESS);
         }
     }
+
+    public function del(){
+        if( $this->request->isDelete() ){
+            $key = $this->request->delete($this->primaryKey);
+            if(!isAdministrator($key)){
+                $delNum = \app\admin\model\User::destroy($key);
+                if( $delNum ){
+                    UserData::destroy(['uid' => $key]);
+                    $this->success('操作成功！', url('User/index'));
+                }
+            }else{
+                $this->error('管理员不能被删除！');
+            }
+        }
+        $this->error('操作失败！');
+    }
 }
\ No newline at end of file
diff --git a/application/common.php b/application/common.php
index 0377b2d..6ae36b1 100644
--- a/application/common.php
+++ b/application/common.php
@@ -9,6 +9,38 @@
 // | Author: 流年 <liu21st@gmail.com>
 // +----------------------------------------------------------------------
 
+/**
+ * 判断是否是系统管理员
+ * @param mixed $uid
+ * @return bool
+ */
+function isAdministrator( $uid = '' ){
+    $uid = empty($uid) ? session('uid') : $uid;
+    if( is_array(config('USER_ADMINISTRATOR')) ){
+        if( is_array( $uid ) ){
+            $m = array_intersect( config('USER_ADMINISTRATOR'), $uid );
+            if( count($m) ){
+                return TRUE;
+            }
+        }else{
+            if( in_array( $uid, config('USER_ADMINISTRATOR') ) ){
+                return TRUE;
+            }
+        }
+    }else{
+        if( is_array( $uid ) ){
+            if( in_array(config('USER_ADMINISTRATOR'),$uid) ){
+                return TRUE;
+            }
+        }else{
+            if( $uid == config('USER_ADMINISTRATOR')){
+                return TRUE;
+            }
+        }
+    }
+    return FALSE;
+}
+
 /**
  * CURL post数据
  * @param $url
diff --git a/application/config.php b/application/config.php
index 29e09a2..673d25e 100644
--- a/application/config.php
+++ b/application/config.php
@@ -15,6 +15,7 @@ return [
     'WEBSITE_DOMAIN' => 'http://www.7d-vision.com', //官方网址
     'COMPANY_NAME'   => '北京七维视觉科技有限公司', //公司名称
     'SQL_PRIMARY_KEY' => 'id',
+    'USER_ADMINISTRATOR' => 1,
 
     // +----------------------------------------------------------------------
     // | 应用设置