现场演示：我的 HTML 文档

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <title>JavaScript Remove an Element from the DOM</title>
</head>
<body>
    <div id="main">
        <h1 id="title">Hello World!</h1>
        <p id="hint">This is a simple paragraph.</p>
    </div>
    
    <button type="button" onclick="removeElement()">Remove Element</button>
    
    <script>
    function removeElement() {
        var parentElem = document.getElementById("main");
        var childElem = document.getElementById("hint");
        parentElem.removeChild(childElem);
    }
    </script>
</body>
</html>