<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>表格学习</title>
</head>
<body>
<!--
表格标签 tale
border 格式
行 tr
列 td
-->
<table border="1px">
    <tr>
        <!--colspan 跨列 后面数字为跨的列数-->
        <td colspan="4">1-1</td>
    </tr>
    <tr>
        <!--rowspan 跨列 同上-->
        <td rowspan="2">2-1</td>
        <td>2-2</td>
        <td>2-3</td>
        <td>2-4</td>
    </tr>
    <tr>
        <td>3-1</td>
        <td>3-2</td>
        <td>3-3</td>
    </tr>

</table>


</body>
</html>