diff --git a/Wechat/Contracts/Tools.php b/Wechat/Contracts/Tools.php
index 6b52791..08ead4b 100644
--- a/Wechat/Contracts/Tools.php
+++ b/Wechat/Contracts/Tools.php
@@ -111,14 +111,14 @@ class Tools
      * @return \CURLFile|string
      * @throws LocalCacheException
      */
-    public static function createCurlFile($filename, $mimetype = '', $postname = '')
+    public static function createCurlFile($filename, $mimetype = null, $postname = null)
     {
-        $basename = $postname || basename($filename);
-        $basemine = $mimetype || self::getExtMine(pathinfo($filename, 4));
+        is_null($postname) && $postname = basename($filename);
+        is_null($mimetype) && $mimetype = self::getExtMine(pathinfo($filename, 4));
         if (function_exists('curl_file_create')) {
-            return curl_file_create($filename, $basemine, $basename);
+            return curl_file_create($filename, $mimetype, $postname);
         }
-        return "@{$filename};filename={$basename};type={$basemine}";
+        return "@{$filename};filename={$postname};type={$mimetype}";
     }
 
     /**
diff --git a/Wechat/Media.php b/Wechat/Media.php
index d0a94d2..0eb2a3b 100644
--- a/Wechat/Media.php
+++ b/Wechat/Media.php
@@ -33,7 +33,7 @@ class Media extends Wechat
      * @throws Exceptions\LocalCacheException
      * @throws InvalidResponseException
      */
-    public function upload($filename, $type = 'image')
+    public function add($filename, $type = 'image')
     {
         if (!in_array($type, ['image', 'voice', 'video', 'thumb'])) {
             throw new InvalidResponseException('Invalid Media Type.', '0');
@@ -171,7 +171,7 @@ class Media extends Wechat
      * @throws Exceptions\LocalCacheException
      * @throws InvalidResponseException
      */
-    public function batchGetMaterial($type, $offset = 0, $count = 20)
+    public function batchGetMaterial($type = 'image', $offset = 0, $count = 20)
     {
         if (!in_array($type, ['image', 'voice', 'video', 'news'])) {
             throw new InvalidResponseException('Invalid Media Type.', '0');
diff --git a/Wechat/User.php b/Wechat/User.php
index 9422a72..05d2d75 100644
--- a/Wechat/User.php
+++ b/Wechat/User.php
@@ -32,7 +32,7 @@ class User extends Wechat
      * @throws Exceptions\InvalidResponseException
      * @throws Exceptions\LocalCacheException
      */
-    public function updatereMark($openid, $remark)
+    public function updateMark($openid, $remark)
     {
         $url = 'https://api.weixin.qq.com/cgi-bin/user/info/updateremark?access_token=ACCESS_TOKEN';
         $this->registerApi($url, __FUNCTION__, func_get_args());