diff --git a/aop/Key/AlipayKeyPair.php b/aop/Key/AlipayKeyPair.php
index fe67d853..78305ac3 100644
--- a/aop/Key/AlipayKeyPair.php
+++ b/aop/Key/AlipayKeyPair.php
@@ -89,7 +89,7 @@ public function getPublicKey()
     }
 
     /**
-     * 设置公钥
+     * 设置应用私钥
      *
      * @param string $key
      *
@@ -103,7 +103,7 @@ public function setPrivateKey($key)
     }
 
     /**
-     * 设置私钥
+     * 设置支付宝公钥
      *
      * @param string $key
      *