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