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89 lines
2.1 KiB
Markdown
89 lines
2.1 KiB
Markdown
---
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order: 3
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title:
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zh-CN: 箭头指向
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en-US: Arrow pointing at the center
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---
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## zh-CN
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设置 `arrow` 为 `{ pointAtCenter: true }` 后，箭头将指向目标元素的中心。
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## en-US
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By specifying `arrow` prop with `{ pointAtCenter: true }`, the arrow will point to the center of the target element.
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```tsx
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import { Button, Dropdown, Menu } from 'antd';
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import React from 'react';
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const menu = (
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<Menu
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items={[
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{
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key: '1',
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label: (
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<a target="_blank" rel="noopener noreferrer" href="https://www.antgroup.com">
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1st menu item
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</a>
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),
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},
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{
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key: '2',
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label: (
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<a target="_blank" rel="noopener noreferrer" href="https://www.aliyun.com">
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2nd menu item
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</a>
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),
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},
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{
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key: '3',
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label: (
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<a target="_blank" rel="noopener noreferrer" href="https://www.luohanacademy.com">
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3rd menu item
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</a>
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),
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},
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]}
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/>
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);
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const App: React.FC = () => (
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<>
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<Dropdown overlay={menu} placement="bottomLeft" arrow={{ pointAtCenter: true }}>
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<Button>bottomLeft</Button>
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</Dropdown>
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<Dropdown overlay={menu} placement="bottom" arrow={{ pointAtCenter: true }}>
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<Button>bottom</Button>
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</Dropdown>
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<Dropdown overlay={menu} placement="bottomRight" arrow={{ pointAtCenter: true }}>
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<Button>bottomRight</Button>
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</Dropdown>
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<br />
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<Dropdown overlay={menu} placement="topLeft" arrow={{ pointAtCenter: true }}>
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<Button>topLeft</Button>
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</Dropdown>
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<Dropdown overlay={menu} placement="top" arrow={{ pointAtCenter: true }}>
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<Button>top</Button>
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</Dropdown>
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<Dropdown overlay={menu} placement="topRight" arrow={{ pointAtCenter: true }}>
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<Button>topRight</Button>
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</Dropdown>
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</>
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);
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export default App;
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```
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```css
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#components-dropdown-demo-arrow-center .ant-btn {
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margin-right: 8px;
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margin-bottom: 8px;
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}
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.ant-row-rtl #components-dropdown-demo-arrow-center .ant-btn {
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margin-right: 0;
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margin-bottom: 8px;
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margin-left: 8px;
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}
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```
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