From 6230dce92ec355480dad6b8b2ed18c47f2f75694 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=BA=9E=E5=A4=A7=E8=8A=B1?= <giftangellong@gmail.com>
Date: Wed, 18 Mar 2020 14:04:22 +0800
Subject: [PATCH] Update README.md

---
 README.md | 15 ++-------------
 1 file changed, 2 insertions(+), 13 deletions(-)

diff --git a/README.md b/README.md
index 60c6eaf..583b95a 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # wxwork_finance_sdk_wrapper
 
-企业微信-获取会话内容PHP扩展
+企业微信-会话内容存档PHP扩展
 
 
 ## 依赖
@@ -46,18 +46,7 @@ openssl扩展
 ``` 
 
 ```php
-   array WxworkFinanceSdk::getMediaData(string $fileId, string $indexBuf = '')
-   * 拉取媒体消息
-    $filedId  从GetChatData返回的聊天消息中，媒体消息包括的sdkfileid
-    $indexBuf 下一次拉取记录
-
-    返回结构:
-    [
-        'data' => '媒体内容',
-        'nextIndex' => '下一次拉取记录',
-        'isFininshed' => bool // true 数据已全部拉取完毕
-    ]
-
+   bool WxworkFinanceSdk::downloadMedia(string $fileId, string $savePath = '')
 ```
 
 ```php