我是一个初学者学习反应，但我从我的第一个反应代码得到麻烦，ReactDOM.render()显示任何东西。有什么问题吗?
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>react</title>
<link rel="stylesheet" href="../REACT/style.css">
<script crossorigin src="https://unpkg.com/react@18/umd/react.development.js"></script>
<script crossorigin src="https://unpkg.com/react-dom@18/umd/react-dom.development.js"></script>
<script src="https://unpkg.com/babel-standalone@6/babel.min.js"></script>
</head>
<body>
<div id="root"></div>
<script src="../REACT/app.js" type="text/babel">
ReactDOM.render(<h1>Hello, everyone!</h1>, document.getElementById("root"))
</script>
</body>
</html>我期待看到大家好!但是它什么也没显示
从script标签中删除:
src="../REACT/app.js"