#### 按钮尺寸
按钮有大、中、小三种尺寸。
通过设置 `size` 为 `large` `small` 分别把按钮设为大、小尺寸。若不设置 `size`,则尺寸为中。
#### Size
Ant Design supports a default button size as well as a large and small size.
If a large or small button is desired, set the `size` property to either `large` or `small` respectively. Omit the `size` property for a button with the default size.
```html
Large
Default
Small
Primary
Normal
Dashed
Danger
Link
Download
Download
Backward
Forward
```