diff --git a/application/common.php b/application/common.php
index 9ee2fc97b..585e0990d 100755
--- a/application/common.php
+++ b/application/common.php
@@ -1293,6 +1293,74 @@ function Authcode($string, $operation = 'DECODE', $key = '', $expiry = 0) {
     }
 }
 
+/**
+ * [SS 设置缓存]
+ * @author   Devil
+ * @blog     http://gong.gg/
+ * @version  1.0.0
+ * @datetime 2017-09-24T19:01:00+0800
+ * @param    [string]              $key  [缓存key]
+ * @param    [mixed]               $data [需要存储的数据]
+ * @return   [boolean]                   [成功true, 失败false]
+ */
+function SS($key, $data)
+{
+    if(empty($key) || empty($data))
+    {
+        return false;
+    }
+
+    $data['cache_time'] = time();
+    return cache($key, $data);
+}
+
+/**
+ * [GS 获取缓存]
+ * @author   Devil
+ * @blog     http://gong.gg/
+ * @version  1.0.0
+ * @datetime 2017-09-24T18:54:54+0800
+ * @param    [string]          $key             [缓存key]
+ * @param    [integer]         $expires_time    [默认过期时间0长期有效（单位秒）]
+ * @param    [boolean]         $is_filem_time   [是否返回文件上一次更新时间]
+ * @return   [boolean|mixed]                    [没数据false, 则数据]
+ */
+function GS($key, $expires_time = 0, $is_filem_time = false)
+{
+    if(empty($key))
+    {
+        return false;
+    }
+    $data = cache($key);
+    if($data !== null)
+    {
+        $expires_time = intval($expires_time);
+        if($expires_time > 0)
+        {
+            if($data['cache_time']+$expires_time < time())
+            {
+                return false;
+            }
+        }
+        return $data;
+    }
+    return false;
+}
+
+/**
+ * [DS 删除缓存]
+ * @author   Devil
+ * @blog     http://gong.gg/
+ * @version  1.0.0
+ * @datetime 2017-09-24T19:01:00+0800
+ * @param    [string]              $key  [缓存key]
+ * @return   [boolean]                   [成功true, 失败false]
+ */
+function DS($key)
+{
+    return cache($key, null);
+}
+
 /**
  * [ParamsChecked 参数校验方法]
  * @author   Devil