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>
<script>
function createCaption(){
    var x=document.getElementById('myTable').createCaption();
    x.innerHTML="表的标题";
}
</script>
</head>
<body>
​
<table id="myTable" border="1">
<tr>
<td>行1 列1</td>
<td>行1 列2</td>
</tr>
<tr>
<td>行2 列1</td>
<td>行2 列2</td>
</tr>
</table>
<br>
<input type="button" onclick="createCaption()" value="创建标题">
​
</body>
</html>