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---
order: 4
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title:
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zh-CN: 事件
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en-US: Event
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---
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## zh-CN
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当 Slider 的值发生改变时,会触发 `onChange` 事件,并把改变后的值作为参数传入。在 `onmouseup` 时,会触发 `onAfterChange` 事件,并把当前值作为参数传入。
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## en-US
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The `onChange` callback function will fire when the user changes the slider's value. The `onAfterChange` callback function will fire when `onmouseup` fired.
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```jsx
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import { Slider } from 'antd';
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function onChange(value) {
console.log('onChange: ', value);
}
function onAfterChange(value) {
console.log('onAfterChange: ', value);
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}
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export default () => (
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< >
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< Slider defaultValue = {30} onChange = {onChange} onAfterChange = {onAfterChange} / >
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< Slider
range
step={10}
defaultValue={[20, 50]}
onChange={onChange}
onAfterChange={onAfterChange}
/>
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< />
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);
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```