refactor(description): clean code

src/descriptions/demos/enUS/index.demo-entry.md

@@ -15,7 +15,7 @@ bordered
 size
 ```
 
-## Props
+## API
 
 ### Descriptions Props
 
@@ -30,7 +30,7 @@ size
 | size | `'small' \| 'medium' \| 'large'` | `'medium'` | Size of the description. |
 | title | `string` | `undefined` | Title of the description. |
 
-### Description Item Props
+### DescriptionItem Props
 
 | Name | Type | Default | Description |
 | --- | --- | --- | --- |
@@ -39,8 +39,6 @@ size
 | label-style | `Object \| string` | `undefined` | Style of the item label. |
 | span | `number` | `1` | Column span of the item. |
 
-## Slots
-
 ### Descriptions Slots
 
 | Name    | Parameters | Description     |
@@ -48,7 +46,7 @@ size
 | default | `()`       | Content.        |
 | header  | `()`       | Header content. |
 
-### Description Item Slots
+### DescriptionItem Slots
 
 | Name    | Parameters | Description   |
 | ------- | ---------- | ------------- |

src/descriptions/demos/zhCN/index.demo-entry.md

@@ -15,7 +15,7 @@ bordered
 size
 ```
 
-## Props
+## API
 
 ### Descriptions Props
 
@@ -30,7 +30,7 @@ size
 | size | `'small' \| 'medium' \| 'large'` | `'medium'` | 尺寸 |
 | title | `string` | `undefined` | 标题 |
 
-### Description Item Props
+### DescriptionItem Props
 
 | 名称          | 类型               | 默认值      | 说明            |
 | ------------- | ------------------ | ----------- | --------------- |
@@ -39,8 +39,6 @@ size
 | label-style   | `Object \| string` | `undefined` | label 的样式    |
 | span          | `number`           | `1`         | 所占的单元格数  |
 
-## Slots
-
 ### Descriptions Slots
 
 | 名称    | 参数 | 说明        |
@@ -48,7 +46,7 @@ size
 | default | `()` | 描述的内容  |
 | header  | `()` | header 内容 |
 
-### Description Item Slots
+### DescriptionItem Slots
 
 | 名称    | 参数 | 说明                |
 | ------- | ---- | ------------------- |

src/descriptions/src/Descriptions.tsx

@@ -29,10 +29,7 @@ const descriptionProps = {
     type: Number,
     default: 3
   },
-  columns: {
-    type: Number,
-    default: undefined
-  },
+  columns: Number,
   labelPlacement: {
     type: String as PropType<'left' | 'top'>,
     default: 'top'
@@ -45,10 +42,7 @@ const descriptionProps = {
     type: String as PropType<'small' | 'medium' | 'large'>,
     default: 'medium'
   },
-  bordered: {
-    type: Boolean,
-    default: false
-  },
+  bordered: Boolean,
   labelStyle: [Object, String] as PropType<string | CSSProperties>,
   contentStyle: [Object, String] as PropType<string | CSSProperties>
 } as const