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