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---
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category: Components
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subtitle: 文字提示
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type: Data Display
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title: Tooltip
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---
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简单的文字提示气泡框。
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## 何时使用
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鼠标移入则显示提示，移出消失，气泡浮层不承载复杂文本和操作。
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可用来代替系统默认的 `title` 提示，提供一个`按钮/文字/操作`的文案解释。
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## API
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| 参数 | 说明 | 类型 | 默认值 |
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| --- | --- | --- | --- |
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| title | 提示文字 | `string` `function` `slot` | 无 |
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### 共同的 API
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以下 API 为 Tooltip、Popconfirm、Popover 共享的 API。
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| 参数 | 说明 | 类型 | 默认值 |
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| --- | --- | --- | --- |
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| arrowPointAtCenter | 箭头是否指向目标元素中 | boolean | `false` |
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| autoAdjustOverflow | 气泡被遮挡时自动调整位置 | boolean | `true` |
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| getPopupContainer | 浮层渲染父节点，默认渲染到 body 上 | Function(triggerNode) | () => document.body |
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| mouseEnterDelay | 鼠标移入后延时多少才显示 Tooltip，单位：秒 | number | 0 |
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| mouseLeaveDelay | 鼠标移出后延时多少才隐藏 Tooltip，单位：秒 | number | 0.1 |
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| overlayClassName | 卡片类名 | string | 无 |
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| overlayStyle | 卡片样式 | object | 无 |
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| placement | 气泡框位置，可选 `top` `left` `right` `bottom` `topLeft` `topRight` `bottomLeft` `bottomRight` `leftTop` `leftBottom` `rightTop` `rightBottom` | string | top |
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| trigger | 触发行为，可选 `hover/focus/click` | string | hover |
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| visible(v-model) | 用于手动控制浮层显隐 | boolean | false |
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### 事件
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| 事件名称 | 说明 | 回调参数 |
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| visibleChange | 显示隐藏变换时触发 | (visible) |
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## 注意
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请确保 `Tooltip` 的子元素能接受 `mouseenter`、`mouseleave`、`focus`、`click` 事件。
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