const { Card,Cascader } = 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);
    }
 const title=<Cascader options={options} 
                       onChange={onChange} 
                       placeholder="Please select" />
    
ReactDOM.render(
 <Card title={title}>测试</Card>
, mountNode);