diff --git a/README.md b/README.md
index 66f3db91d86fea5876eee4bafb212d18d01d956d..04d16454825393f5649fa4ec4a1e68ad00b6e8f1 100644
--- a/README.md
+++ b/README.md
@@ -32,7 +32,7 @@
  }
 ```
 
-在sdk6，DevEco Studio2.2 beta1下项目可直接运行 如无法运行，删除项目.gradle,.idea,build,gradle,build.gradle文件， 并依据自己的版本创建新项目，将新项目的对应文件复制到根目录下
+在sdk6，DevEco Studio 2.2 beta1下项目可直接运行 如无法运行，删除项目.gradle,.idea,build,gradle,build.gradle文件， 并依据自己的版本创建新项目，将新项目的对应文件复制到根目录下
 
 #### 使用说明
 
diff --git a/entry/src/main/java/com/willy/example/MainAbility.java b/entry/src/main/java/com/willy/example/MainAbility.java
index 875adbe5756172a5b6f2a72234e41bfbde520a5a..bc34b24338cc4f6baa1e7b9e71a9528c918824b6 100644
--- a/entry/src/main/java/com/willy/example/MainAbility.java
+++ b/entry/src/main/java/com/willy/example/MainAbility.java
@@ -19,7 +19,7 @@ import com.willy.example.slice.MainAbilitySlice;
 import ohos.aafwk.ability.Ability;
 import ohos.aafwk.content.Intent;
 
-/** TouchEventManager
+/** MainAbility
  *
  * @author ljx
  * @since 2021-07-02
diff --git a/entry/src/main/java/com/willy/example/slice/MainAbilitySlice.java b/entry/src/main/java/com/willy/example/slice/MainAbilitySlice.java
index a3d38fc3f6613c3291dc0b07154dd64e64e2343e..1bde284c230d1cd02f65f81ed437f4a5737c6c9e 100644
--- a/entry/src/main/java/com/willy/example/slice/MainAbilitySlice.java
+++ b/entry/src/main/java/com/willy/example/slice/MainAbilitySlice.java
@@ -1,3 +1,18 @@
+/*
+ * 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.
+ */
+
 package com.willy.example.slice;
 
 import com.willy.example.DemoFragment;
@@ -18,6 +33,11 @@ import ohos.app.Context;
 import ohos.eventhandler.EventHandler;
 import ohos.eventhandler.EventRunner;
 
+/** MainAbilitySlice
+ *
+ * @author ljx
+ * @since 2021-07-02
+ */
 public class MainAbilitySlice extends AbilitySlice {
 
     private PageSlider pageSlider;
diff --git a/library/src/main/java/com/willy/ratingbar/BaseRatingBar.java b/library/src/main/java/com/willy/ratingbar/BaseRatingBar.java
index 46e50ab13226b96dd1d7a5c310b08ac5150d5160..ec35c9d921b055bd50a05f598a3d5c2e79067bd5 100644
--- a/library/src/main/java/com/willy/ratingbar/BaseRatingBar.java
+++ b/library/src/main/java/com/willy/ratingbar/BaseRatingBar.java
@@ -57,7 +57,7 @@ public class BaseRatingBar extends DirectionalLayout implements SimpleRatingBar,
     /**
      * @param context      context
      * @param attrs        attributes from XML => app:mainText="mainText"
-     * @param defStyleAttr attributes from default style (Application theme or activity theme)
+     * @param defStyleAttr attributes from default style (Application theme or theme)
      */
     public BaseRatingBar(Context context, AttrSet attrs, String defStyleAttr) {
         super(context, attrs, defStyleAttr);