docs(input): showCount type 文档 (#8041)

* fix(input): showCount type 文档

* fix(input): showCount type 文档

---------

Co-authored-by: zhiqiangchen <zhiqiang.chen@igg.com>

Author: czq297297

components/input/index.en-US.md

@@ -29,7 +29,7 @@ A basic widget for getting the user input is a text field. Keyboard and mouse ca
 | id | The ID for input | string |  |  |
 | maxlength | max length | number |  | 1.5.0 |
 | prefix | The prefix icon for the Input. | string\|slot |  |  |
-| showCount | Whether show text count | boolean | false | 3.0 |
+| showCount | Whether show text count | boolean \| { formatter: (info: { value: string, count: number, maxLength?: number }) => string | false | 3.0 |
 | status | Set validation status | 'error' \| 'warning' | - | 3.3.0 |
 | size | The size of the input box. Note: in the context of a form, the `middle` size is used. Available: `large` `middle` `small` | string | - |  |
 | suffix | The suffix icon for the Input. | string\|slot |  |  |
@@ -52,7 +52,7 @@ A basic widget for getting the user input is a text field. Keyboard and mouse ca
 | allowClear | allow to remove input content with clear icon | boolean |  | 1.5.0 |  |
 | autosize | Height autosize feature, can be set to `true | false`or an object`{ minRows: 2, maxRows: 6 }` | boolean\|object | false |  |
 | defaultValue | The initial input content | string |  |  |  |
-| showCount | Whether show text count | boolean | false |  |  |
+| showCount | Whether show text count | boolean \| { formatter: (info: { value: string, count: number, maxLength?: number }) => string | false |  |  |
 | value(v-model) | The input content value | string |  |  |  |
 
 ### TextArea Events

components/input/index.zh-CN.md

@@ -30,7 +30,7 @@ coverDark: https://mdn.alipayobjects.com/huamei_7uahnr/afts/img/A*sBqqTatJ-AkAAA
 | id | 输入框的 id | string |  |  |
 | maxlength | 最大长度 | number |  | 1.5.0 |
 | prefix | 带有前缀图标的 input | string\|slot |  |  |
-| showCount | 是否展示字数 | boolean | false | 3.0 |
+| showCount | 是否展示字数 | boolean \| { formatter: (info: { value: string, count: number, maxLength?: number }) => string } | false | 3.0 |
 | status | 设置校验状态 | 'error' \| 'warning' | - | 3.3.0 |
 | size | 控件大小。注：标准表单内的输入框大小限制为 `middle`。可选 `large` `middle` `small` | string | - |  |
 | suffix | 带有后缀图标的 input | string\|slot |  |  |
@@ -53,7 +53,7 @@ coverDark: https://mdn.alipayobjects.com/huamei_7uahnr/afts/img/A*sBqqTatJ-AkAAA
 | allowClear | 可以点击清除图标删除内容 | boolean |  | 1.5.0 |  |
 | autosize | 自适应内容高度，可设置为 `true | false` 或对象：`{ minRows: 2, maxRows: 6 }` | boolean\|object | false |  |
 | defaultValue | 输入框默认内容 | string |  |  |  |
-| showCount | 是否展示字数 | boolean | false |  |  |
+_| showCount | 是否展示字数 | boolean \| { formatter: (info: { value: string, count: number, maxLength?: number }) => string } | false |  |  |_
 | value(v-model) | 输入框内容 | string |  |  |  |
 
 ### TextArea 事件