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5588dae212
ant-design/components/dropdown/demo/arrow.md
MadCcc e5451a95cb
feat: dropdown support arrow pointing at center (#33658) 
* feat: add pointAtCenter prop for dropdown

* feat: dropdown support arrow pointing at center

* chore: code clean

* chore: use getPlacements in tooltip

* feat: dropdown support 'top' and 'bottom'

* chore: update snapshot

* chore: move placements to util folder

* feat: make 'topCenter' and 'bottomCenter' in Dropdown deprecated

* test: update snapshot

* test: add test for topCenter and bottomCenter
2022-01-13 13:34:34 +08:00

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zh-CN en-US
箭头 Arrow

zh-CN

可以展示一个箭头。

en-US

You could display an arrow.

import { Menu, Dropdown, Button } from 'antd';

const menu = (
  <Menu>
    <Menu.Item>
      <a target="_blank" rel="noopener noreferrer" href="https://www.antgroup.com">
        1st menu item
      </a>
    </Menu.Item>
    <Menu.Item>
      <a target="_blank" rel="noopener noreferrer" href="https://www.aliyun.com">
        2nd menu item
      </a>
    </Menu.Item>
    <Menu.Item>
      <a target="_blank" rel="noopener noreferrer" href="https://www.luohanacademy.com">
        3rd menu item
      </a>
    </Menu.Item>
  </Menu>
);

ReactDOM.render(
  <>
    <Dropdown overlay={menu} placement="bottomLeft" arrow>
      <Button>bottomLeft</Button>
    </Dropdown>
    <Dropdown overlay={menu} placement="bottom" arrow>
      <Button>bottom</Button>
    </Dropdown>
    <Dropdown overlay={menu} placement="bottomRight" arrow>
      <Button>bottomRight</Button>
    </Dropdown>
    <br />
    <Dropdown overlay={menu} placement="topLeft" arrow>
      <Button>topLeft</Button>
    </Dropdown>
    <Dropdown overlay={menu} placement="top" arrow>
      <Button>top</Button>
    </Dropdown>
    <Dropdown overlay={menu} placement="topRight" arrow>
      <Button>topRight</Button>
    </Dropdown>
  </>,
  mountNode,
);

#components-dropdown-demo-arrow .ant-btn {
  margin-right: 8px;
  margin-bottom: 8px;
}
.ant-row-rtl #components-dropdown-demo-arrow .ant-btn {
  margin-right: 0;
  margin-bottom: 8px;
  margin-left: 8px;
}