获取你的 自有 React 服务器
import React from 'react';
import ReactDOM from 'react-dom/client';

const x = 5;

const myElement = <h1>{(x) < 10 ? "Hello" : "Goodbye"}</h1>;

const root = ReactDOM.createRoot(document.getElementById('root'));
root.render(myElement);

              
localhost:3000