diff --git a/library/think/Response.php b/library/think/Response.php
index 5b86e940..31052b84 100644
--- a/library/think/Response.php
+++ b/library/think/Response.php
@@ -66,6 +66,7 @@ class Response
      * @param mixed $data 输出数据
      * @param string $type 输出类型
      * @param array $options 输出参数
+     * @return Response
      */
     public static function create($data = [], $type = '', $options = [])
     {
@@ -87,6 +88,7 @@ class Response
      * @access public
      * @param mixed $data 数据
      * @return mixed
+     * @throws Exception
      */
     public function send($data = [])
     {
diff --git a/library/think/cache/driver/File.php b/library/think/cache/driver/File.php
index 2c0ddff1..d8487102 100644
--- a/library/think/cache/driver/File.php
+++ b/library/think/cache/driver/File.php
@@ -32,7 +32,7 @@ class File
 
     /**
      * 架构函数
-     * @access public
+     * @param array $options
      */
     public function __construct($options = [])
     {
@@ -54,10 +54,11 @@ class File
     {
         // 创建项目缓存目录
         if (!is_dir($this->options['path'])) {
-            if (!mkdir($this->options['path'], 0755, true)) {
-                return false;
+            if (mkdir($this->options['path'], 0755, true)) {
+                return true;
             }
         }
+        return false;
     }
 
     /**
diff --git a/library/think/cache/driver/Xcache.php b/library/think/cache/driver/Xcache.php
index a529bed3..00a0483f 100644
--- a/library/think/cache/driver/Xcache.php
+++ b/library/think/cache/driver/Xcache.php
@@ -30,6 +30,7 @@ class Xcache
      * 架构函数
      * @param array $options 缓存参数
      * @access public
+     * @throws Exception
      */
     public function __construct($options = [])
     {
diff --git a/library/think/controller/Rest.php b/library/think/controller/Rest.php
index e88826d9..ebf53be8 100644
--- a/library/think/controller/Rest.php
+++ b/library/think/controller/Rest.php
@@ -57,12 +57,10 @@ abstract class Rest
     /**
      * REST 调用
      * @access public
-     *
      * @param string $method 方法名
      * @param array  $args   参数
-     *
      * @return mixed
-     * @throws \think\Exception
+     * @throws \Exception
      */
     public function _empty($method, $args)
     {
@@ -88,7 +86,7 @@ abstract class Rest
      * @param mixed $data 要返回的数据
      * @param String $type 返回类型 JSON XML
      * @param integer $code HTTP状态
-     * @return void
+     * @return Response
      */
     protected function response($data, $type = 'json', $code = 200)
     {
diff --git a/library/think/db/Connection.php b/library/think/db/Connection.php
index b7d94dfb..1b3de0a6 100644
--- a/library/think/db/Connection.php
+++ b/library/think/db/Connection.php
@@ -128,7 +128,7 @@ abstract class Connection
      * 创建指定模型的查询对象
      * @access public
      * @param string $model 模型类名称
-     * @return \think\Query
+     * @return \think\db\Query
      */
     public function model($model)
     {
diff --git a/library/traits/controller/Jump.php b/library/traits/controller/Jump.php
index ae5aaf90..c0c6b1b0 100644
--- a/library/traits/controller/Jump.php
+++ b/library/traits/controller/Jump.php
@@ -29,7 +29,7 @@ trait Jump
      * @param string $url 跳转的URL地址
      * @param mixed $data 返回的数据
      * @param integer $wait 跳转等待时间
-     * @return void
+     * @return array
      */
     public function success($msg = '', $url = null, $data = '', $wait = 3)
     {
diff --git a/library/traits/think/Instance.php b/library/traits/think/Instance.php
index d85975b3..de123079 100644
--- a/library/traits/think/Instance.php
+++ b/library/traits/think/Instance.php
@@ -11,6 +11,8 @@
 
 namespace traits\think;
 
+use \think\Exception;
+
 trait Instance
 {
     protected static $instance = null;
@@ -37,7 +39,7 @@ trait Instance
         if (0 === strpos($method, '_') && is_callable([self::$instance, $call])) {
             return call_user_func_array([self::$instance, $call], $params);
         } else {
-            throw new \think\Exception("not exists method:" . $method);
+            throw new Exception("not exists method:" . $method);
         }
     }
 }