ant-design/components/auto-complete/demo/options.md

order	title
2	[{zh-CN 自定义选项} {en-US Customized}]

zh-CN

也可以直接传 AutoComplete.Option 作为 AutoComplete 的 children，而非使用 dataSource。

en-US

You could pass AutoComplete.Option as children of AutoComplete, instead of using dataSource。

import { AutoComplete } from 'antd';

const Option = AutoComplete.Option;

class Complete extends React.Component {
  state = {
    result: [],
  }

  handleChange = (value) => {
    let result;
    if (!value || value.indexOf('@') >= 0) {
      result = [];
    } else {
      result = ['gmail.com', '163.com', 'qq.com'].map(domain => `${value}@${domain}`);
    }
    this.setState({ result });
  }

  render() {
    const { result } = this.state;
    const children = result.map((email) => {
      return <Option key={email}>{email}</Option>;
    });
    return (
      <AutoComplete
        style={{ width: 200 }}
        onChange={this.handleChange}
        placeholder="input here"
      >
        {children}
      </AutoComplete>
    );
  }
}

ReactDOM.render(<Complete />, mountNode);