菜鸟教程在线编辑器

左右布局
AI 编程工具
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>菜鸟教程(runoob.com)</title>
</head>
<body>
​
<input type="text" id="myText" value="文本域">
<p>点击按钮设置或移除以上文本域的焦点。</p>
<input type="button" onclick="getfocus()" value="获取焦点">
<input type="button" onclick="losefocus()" value="移除焦点">
<script>
function getfocus() {
    document.getElementById("myText").focus();
}
function losefocus() {
    document.getElementById("myText").blur();
}
</script>
​
</body>
</html>