| 1 | ## Tooltip
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| 2 |
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| 3 | ```jsx
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| 4 | <Tooltip placement="leftTop" overlay="提示文字">
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| 5 | <Button>左上</Button>
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| 6 | </Tooltip>
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| 7 | ```
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| 8 |
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| 9 |
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| 10 | |参数|类型|默认值|说明|
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| 11 | |---|----|---|------|
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| 12 | |overlayClassName | string | dh | additional className added to popup overlay |
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| 13 | |trigger | string[] | ['hover'] | which actions cause tooltip shown. enum of 'hover','click','focus' |
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| 14 | |mouseEnterDelay | number | 0 | delay time to show when mouse enter.unit: s. |
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| 15 | |mouseLeaveDelay | number | 0.1 | delay time to hide when mouse leave.unit: s. |
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| 16 | |overlayStyle | Object | | additional style of overlay node |
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| 17 | |wrapStyle | Object | | additional style of wrap node |
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| 18 | |prefixCls | String | kuma-tooltip | prefix class name |
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| 19 | |onVisibleChange | Function | | call when visible is changed |
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| 20 | |visible | boolean | | whether tooltip is visible |
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| 21 | |defaultVisible | boolean | | whether tooltip is visible initially |
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| 22 | |placement | String 或 Object | | one of ['left','right','top','bottom', 'topLeft', 'topRight', 'bottomLeft','bottomRight'] or alignConfig of [dom-align](https://github.com/yiminghe/dom-align)
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| 23 | |align | Object: alignConfig of [dom-align](https://github.com/yiminghe/dom-align) | | only valid when placement's type is String. value will be merged into placement's align config. note: can only accept offset and targetOffset overlay React.Element popup content |
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| 24 | |getTooltipContainer | function | | function returning html node which will act as tooltip contaier |
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