diff --git a/CHANGELOG.md b/CHANGELOG.md
index 725696cfca8106560eb6996a5f53ac97764d4995..0a046d934184911ea80efe238b88ab9917eaffe4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,3 @@
-## 2.0.1
-适配Deveco Studio:4.0 (4.0.3.512),SDK:API10 (4.0.10.9)
-
 ## 2.0.0
 适配DevEco Studio版本: 4.0Canary1(4.0.3.212), SDK: API10(4.0.8.3)
 
diff --git a/OAT.xml b/OAT.xml
index bf38cbdd18c3d299040a4b25d1c1eaa775c3bad7..68cd8f3867a424c7fbaa90bf7cdd2d93321ce72f 100644
--- a/OAT.xml
+++ b/OAT.xml
@@ -1,4 +1,21 @@
 <?xml version="1.0" encoding="UTF-8"?>
+<!-- Copyright (c) 2021 Huawei Device Co., Ltd.
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+
+    This is the configuration file template for OpenHarmony OSS Audit Tool, please copy it to your project root dir and modify it refer to OpenHarmony/tools_oat/README.
+
+-->
 <configuration>
 <oatconfig>
     <filefilterlist>
diff --git a/README.md b/README.md
index 1f6923b724810b3c66d7ac238dcd84a774f8d552..ff93da286cc3288a213957fb331cd6d0a3d23442 100644
--- a/README.md
+++ b/README.md
@@ -56,6 +56,18 @@ ohpm install @ohos/pinyin4js
     
 ```
 
+## 接口说明
+
+|                方法名                 |              接口描述               |
+|:----------------------------------:|:-------------------------------:|
+|      convertToPinyinString()       |         将字符串转换成相应格式的拼音          |
+|    convertToSimplifiedChinese()    |            将繁体转化为简体             |
+|   convertToTraditionalChinese()    |            将简体转化为繁体             |
+|          getShortPinyin()          |            获取拼音的首字母             |
+|          hasMultiPinyin()          |          判断一个汉字是否为多音字           |
+|         containsChinese()          |             是否包含汉字              |
+|            isChinese()             |             判断是否为汉字             |
+
 ## 约束与限制
 
 在下述版本验证通过：