#### 适应文本高度的文本域
`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。
#### Autosizing the height to fit the content
`autosize` prop for a `textarea` type of `Input` makes the height to automatically adjust based on the content.
An options object can be provided to `autosize` to specify the minimum and maximum number of lines the textarea will automatically adjust.
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