import './demo6.css'; import Nav from '..'; import Radio from '../../radio'; import React from 'react'; import ReactDOM from 'react-dom'; const { Item, SubNav } = Nav; interface PageStates { popupAlign: string; } class App extends React.Component<{}, PageStates> { constructor(props) { super(props); this.state = { popupAlign: 'outside', }; } setValue(popupAlign) { this.setState({ popupAlign, }); } render() { const { popupAlign } = this.state; return (