复制-javascript实现办法

<body>
        <p>山有木兮木有枝，心悦君兮君不知</p>
        <!-- <p><button onclick="copyToClipboard('哈哈哈哈哈')">复制</button></p> -->
        
        <p><button>复制</button></p>
        <script>
            const copyToClipboard = (text) => navigator.clipboard.writeText(text)
            //调用 copyToClipboard('hello world')
            document.querySelector('button').addEventListener('click',function(){
                copyToClipboard(document.querySelector('p').innerText)
                alert('复制成功')
            })
        </script>
    </body>