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>

<p>该实例使用 addEventListener() 方法来向按钮添加点击事件。</p>
<button id="myBtn">点我</button>
<p id="demo"></p>
<script>
document.getElementById("myBtn").addEventListener("click", function()
{
    document.getElementById("demo").innerHTML = "Hello World";
});
</script>

</body>
</html>
              