---
order: 6
title:
zh-CN: 适应文本高度的文本域
en-US: Autosizing the height to fit the content
---
## zh-CN
`autoSize` 属性适用于 `textarea` 节点，并且只有高度会自动变化。另外 `autoSize` 可以设定为一个对象，指定最小行数和最大行数。
## en-US
`autoSize` prop for a `textarea` type of `Input` makes the height to automatically adjust based on the content. An option object can be provided to `autoSize` to specify the minimum and maximum number of lines the textarea will automatically adjust.
```jsx
import { Input } from 'antd';
const { TextArea } = Input;
class Demo extends React.Component {
state = {
value: '',
};
onChange = ({ target: { value } }) => {
this.setState({ value });
};
render() {
const { value } = this.state;
return (
< >
< TextArea placeholder = "Autosize height based on content lines" autoSize / >
< div style = {{ margin: ' 24px 0 ' } } / >
< TextArea
placeholder="Autosize height with minimum and maximum number of lines"
autoSize={{ minRows: 2, maxRows: 6 }}
/>
< div style = {{ margin: ' 24px 0 ' } } / >
< TextArea
value={value}
onChange={this.onChange}
placeholder="Controlled autosize"
autoSize={{ minRows: 3, maxRows: 5 }}
/>
< />
);
}
}
export default Demo;
```
