mes-react/src/app.tsx

import React from "react";
import { Button } from "antd";
import { BrowserRouter, Switch, Route } from "react-router-dom";
import Home from "./pages/Home.tsx";

import "./app.less";
import background from "./images/background.jpg";

export default class App extends React.Component {
	test() {
		// body...
		console.log(12);
	}
	render() {
		return (
			<div>
				<Route path="/" component={Home} />
			</div>
		);
	}
}