diff --git a/application/controllers/Deal.php b/application/controllers/Deal.php
index abcfc57..be9f4e7 100644
--- a/application/controllers/Deal.php
+++ b/application/controllers/Deal.php
@@ -44,10 +44,14 @@
             }
             //上面验证通过，继续执行
             //取出tinypng key
-            $kyes = $row['values'];
-            $kyes = json_decode($kyes);
-            $i = 'api'.rand(1,2);
-            $key = $kyes->$i;
+            //拼写错误处理
+            $keys = $row['values'];
+
+            //可以使用任意多个key
+            //@todo 建议使用列表类型而不是联名数组类型保存key
+            $keys = json_decode($keys, true);
+            $i = 'api'.rand(1, count($keys));
+            $key = $keys[$i-1];
             
             $url = "https://api.tinify.com/shrink";
             $data = file_get_contents($path);