diff --git a/Application/Admin/Common/function.php b/Application/Admin/Common/function.php
index e3caa14..bb7f217 100644
--- a/Application/Admin/Common/function.php
+++ b/Application/Admin/Common/function.php
@@ -1,18 +1,4 @@
 <?php
-/**
- * 系统非常规MD5加密方法
- * @param  string $str 要加密的字符串
- * @param  string $auth_key 要加密的字符串
- * @return string
- * @author jry <598821125@qq.com>
- */
-function user_md5($str, $auth_key = ''){
-    if(!$auth_key){
-        $auth_key = C('AUTH_KEY');
-    }
-    return '' === $str ? '' : md5(sha1($str) . $auth_key);
-}
-
 /**
  * 判断是否是系统管理员
  * @param mixed $uid
diff --git a/Application/Common/Common/function.php b/Application/Common/Common/function.php
index ea9ad97..9413382 100644
--- a/Application/Common/Common/function.php
+++ b/Application/Common/Common/function.php
@@ -24,6 +24,20 @@ if (!function_exists('apache_request_headers')) {
 	}
 }
 
+/**
+ * 系统非常规MD5加密方法
+ * @param  string $str 要加密的字符串
+ * @param  string $auth_key 要加密的字符串
+ * @return string
+ * @author jry <598821125@qq.com>
+ */
+function user_md5($str, $auth_key = ''){
+    if(!$auth_key){
+        $auth_key = C('AUTH_KEY');
+    }
+    return '' === $str ? '' : md5(sha1($str) . $auth_key);
+}
+
 /**
  * @param     $url
  * @param int $timeOut