菜鸟教程在线编辑器

AI 编程工具
 
                <!DOCTYPE html>
<html>
<head> 
<meta charset="utf-8"> 
<title>菜鸟教程(runoob.com)</title> 
</head> 
<body>

<textarea id="myTextarea">
Runoob</textarea>

<p>单击下面的按钮禁用文本框。</p>
<button onclick="disableElement()">点我</button>
<script>
function disableElement(){
	document.getElementById("myTextarea").disabled=true;
}

</script>
</body>
</html>
              