<!DOCTYPE html> <html> <body> <h1>Element 对象</h1> <h2>getAttribute() 方法</h2> <button id="myButton" onclick="myFunction()">按钮</button> <p>按钮的 onclick 属性的值是:</p> <p id="demo"></p> <script> const myButton = document.getElementById("myButton"); let text = myButton.getAttribute("onclick"); document.getElementById("demo").innerHTML = text; </script> </body> </html>