SOURCE

console 命令行工具 X clear

                    
>
console
ClassicEditor
    .create(document.querySelector('#editor'))
    .catch(error => {
        console.error(error);
    });
<!DOCTYPE html>
<html lang="en">

<head>
	<meta charset="utf-8">
	<title>CKEditor 5 - Classic editor</title>
	<script src="https://cdn.ckeditor.com/ckeditor5/27.1.0/classic/ckeditor.js">

	</script>
</head>

<body>
	<h1>Classic editor</h1>
	<form action="[URL]" method="post">
		<textarea name="content" id="editor">
            &lt;p&gt;This is some sample content.&lt;/p&gt;
        </textarea>
        <p><input type="submit" value="Submit"></p>
    </form>
</body>
</html>