diff --git a/package.json b/package.json
index 1eb1101f0..08b22694c 100644
--- a/package.json
+++ b/package.json
@@ -68,7 +68,8 @@
   "devDependencies": {
     "@vant/cli": "^3.1.4",
     "@vue/compiler-sfc": "3.0.3",
-    "vue": "3.0.3"
+    "vue": "3.0.3",
+    "prettier": "2.1.0"
   },
   "sideEffects": [
     "es/**/style/*",
diff --git a/src/empty/README.md b/src/empty/README.md
index 5b47a6023..a0a95d598 100644
--- a/src/empty/README.md
+++ b/src/empty/README.md
@@ -51,7 +51,7 @@ Use the image prop to display different placeholder images.
 
 ```html
 <van-empty description="Description">
-  <van-button round type="danger" class="bottom-button"> Button </van-button>
+  <van-button round type="danger" class="bottom-button">Button</van-button>
 </van-empty>
 
 <style>
diff --git a/src/empty/README.zh-CN.md b/src/empty/README.zh-CN.md
index 1dab31bf9..7248ec81b 100644
--- a/src/empty/README.zh-CN.md
+++ b/src/empty/README.zh-CN.md
@@ -60,7 +60,7 @@ Empty 组件内置了多种占位图片类型，可以在不同业务场景下
 
 ```html
 <van-empty description="描述文字">
-  <van-button round type="danger" class="bottom-button"> 按钮 </van-button>
+  <van-button round type="danger" class="bottom-button">按钮</van-button>
 </van-empty>
 
 <style>
diff --git a/src/form/README.zh-CN.md b/src/form/README.zh-CN.md
index c61abb63a..e559fd8e7 100644
--- a/src/form/README.zh-CN.md
+++ b/src/form/README.zh-CN.md
@@ -38,9 +38,7 @@ app.use(Form);
     :rules="[{ required: true, message: '请填写密码' }]"
   />
   <div style="margin: 16px;">
-    <van-button round block type="primary" native-type="submit">
-      提交
-    </van-button>
+    <van-button round block type="info" native-type="submit">提交</van-button>
   </div>
 </van-form>
 ```
@@ -89,9 +87,9 @@ export default {
     :rules="[{ validator: asyncValidator, message: '请输入正确内容' }]"
   />
   <div style="margin: 16px;">
-    <van-button round block type="primary" native-type="submit">
-      提交
-    </van-button>
+    <van-button round block type="primary" native-type="submit"
+      >提交</van-button
+    >
   </div>
 </van-form>
 ```
diff --git a/src/notice-bar/README.md b/src/notice-bar/README.md
index c74c5f966..c23295c66 100644
--- a/src/notice-bar/README.md
+++ b/src/notice-bar/README.md
@@ -34,15 +34,15 @@ app.use(NoticeBar);
 ### Wrapable
 
 ```html
-<van-notice-bar wrapable :scrollable="false"> Notice Content </van-notice-bar>
+<van-notice-bar wrapable :scrollable="false">Notice Content</van-notice-bar>
 ```
 
 ### Mode
 
 ```html
-<van-notice-bar mode="closeable"> Notice Content </van-notice-bar>
+<van-notice-bar mode="closeable">Notice Content</van-notice-bar>
 
-<van-notice-bar mode="link"> Notice Content </van-notice-bar>
+<van-notice-bar mode="link">Notice Content</van-notice-bar>
 ```
 
 ### Custom Style
@@ -82,7 +82,7 @@ app.use(NoticeBar);
 ### Props
 
 | Attribute | Description | Type | Default |
-| --- | --- | --- | --- | --- |
+| --- | --- | --- | --- |
 | mode | Mode, can be set to `closeable` `link` | _string_ | `''` |
 | text | Notice text content | _string_ | `''` | - |
 | color | Text color | _string_ | `#f60` |
diff --git a/src/notice-bar/README.zh-CN.md b/src/notice-bar/README.zh-CN.md
index b9bc5d0c1..62ec8b317 100644
--- a/src/notice-bar/README.zh-CN.md
+++ b/src/notice-bar/README.zh-CN.md
@@ -60,10 +60,10 @@ app.use(NoticeBar);
 
 ```html
 <!-- closeable 模式，在右侧显示关闭按钮 -->
-<van-notice-bar mode="closeable"> 技术是开发它的人的共同灵魂。 </van-notice-bar>
+<van-notice-bar mode="closeable">技术是开发它的人的共同灵魂。</van-notice-bar>
 
 <!-- link 模式，在右侧显示链接箭头 -->
-<van-notice-bar mode="link"> 技术是开发它的人的共同灵魂。 </van-notice-bar>
+<van-notice-bar mode="link">技术是开发它的人的共同灵魂。</van-notice-bar>
 ```
 
 ### 自定义样式
diff --git a/src/number-keyboard/README.md b/src/number-keyboard/README.md
index c1e485067..85faf3134 100644
--- a/src/number-keyboard/README.md
+++ b/src/number-keyboard/README.md
@@ -15,7 +15,7 @@ app.use(NumberKeyboard);
 ### Default Keyboard
 
 ```html
-<van-cell @touchstart.stop="show = true"> Show Keyboard </van-cell>
+<van-cell @touchstart.stop="show = true">Show Keyboard</van-cell>
 <van-number-keyboard
   :show="show"
   @blur="show = false"
diff --git a/src/number-keyboard/README.zh-CN.md b/src/number-keyboard/README.zh-CN.md
index f1239b2c1..f31125902 100644
--- a/src/number-keyboard/README.zh-CN.md
+++ b/src/number-keyboard/README.zh-CN.md
@@ -21,7 +21,7 @@ app.use(NumberKeyboard);
 数字键盘提供了 `input`、`delete`、`blur` 事件，分别对应输入内容、删除内容和失去焦点的动作。
 
 ```html
-<van-cell @touchstart.stop="show = true"> 弹出默认键盘 </van-cell>
+<van-cell @touchstart.stop="show = true">弹出默认键盘</van-cell>
 <van-number-keyboard
   :show="show"
   @blur="show = false"
diff --git a/src/swipe-cell/README.md b/src/swipe-cell/README.md
index 744b58a75..75b9a76b8 100644
--- a/src/swipe-cell/README.md
+++ b/src/swipe-cell/README.md
@@ -136,10 +136,10 @@ export default {
 
 Use [ref](https://v3.vuejs.org/guide/component-template-refs.html) to get SwipeCell instance and call instance methods.
 
-| Name  | Description     | Attribute       | Return value |
-| ----- | --------------- | --------------- | ------------ | --- |
-| open  | open SwipeCell  | position: `left | right`       | -   |
-| close | close SwipeCell | -               | -            |
+| Name  | Description     | Attribute                 | Return value |
+| ----- | --------------- | ------------------------- | ------------ |
+| open  | open SwipeCell  | position: `left \| right` | -            |
+| close | close SwipeCell | -                         | -            |
 
 ### Less Variables
 
diff --git a/src/swipe-cell/README.zh-CN.md b/src/swipe-cell/README.zh-CN.md
index f2548f53a..dea2b6c16 100644
--- a/src/swipe-cell/README.zh-CN.md
+++ b/src/swipe-cell/README.zh-CN.md
@@ -148,10 +148,10 @@ beforeClose 的第一个参数为对象，对象中包含以下属性：
 
 通过 ref 可以获取到 SwipeCell 实例并调用实例方法，详见[组件实例方法](#/zh-CN/advanced-usage#zu-jian-shi-li-fang-fa)。
 
-| 方法名 | 说明             | 参数            | 返回值 |
-| ------ | ---------------- | --------------- | ------ | --- |
-| open   | 打开单元格侧边栏 | position: `left | right` | -   |
-| close  | 收起单元格侧边栏 | -               | -      |
+| 方法名 | 说明             | 参数                      | 返回值 |
+| ------ | ---------------- | ------------------------- | ------ |
+| open   | 打开单元格侧边栏 | position: `left \| right` | -      |
+| close  | 收起单元格侧边栏 | -                         | -      |
 
 ### 样式变量
 
diff --git a/yarn.lock b/yarn.lock
index 0e2929a60..4eee9d72e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -8374,6 +8374,11 @@ prepend-http@^2.0.0:
   resolved "https://registry.yarnpkg.com/prepend-http/-/prepend-http-2.0.0.tgz#e92434bfa5ea8c19f41cdfd401d741a3c819d897"
   integrity sha1-6SQ0v6XqjBn0HN/UAddBo8gZ2Jc=
 
+prettier@2.1.0:
+  version "2.1.0"
+  resolved "https://registry.npm.taobao.org/prettier/download/prettier-2.1.0.tgz?cache=0&sync_timestamp=1606521234483&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fprettier%2Fdownload%2Fprettier-2.1.0.tgz#5a9789f767a243118c60f3e56d95cb6544914fbb"
+  integrity sha1-WpeJ92eiQxGMYPPlbZXLZUSRT7s=
+
 prettier@^2.2.0:
   version "2.2.0"
   resolved "https://registry.npm.taobao.org/prettier/download/prettier-2.2.0.tgz#8a03c7777883b29b37fb2c4348c66a78e980418b"