ant-design/components/cascader/demo/default-value.md

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---
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order: 1
title:
zh-CN: 默认值
en-US: Default value
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---
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## zh-CN
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默认值通过数组的方式指定。
## en-US
Specifies default value by an array.
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````__react
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import { Cascader } from 'antd';
const options = [{
value: 'zhejiang',
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label: 'Zhejiang',
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children: [{
value: 'hangzhou',
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label: 'Hangzhou',
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children: [{
value: 'xihu',
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label: 'West Lake',
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}],
}],
}, {
value: 'jiangsu',
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label: 'Jiangsu',
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children: [{
value: 'nanjing',
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label: 'Nanjing',
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children: [{
value: 'zhonghuamen',
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label: 'Zhong Hua Men',
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}],
}],
}];
function onChange(value) {
console.log(value);
}
ReactDOM.render(
<Cascader defaultValue={['zhejiang', 'hangzhou', 'xihu']} options={options} onChange={onChange} />
, mountNode);
````