<!DOCTYPE html>标签：12,22,表格,--,HTML,2022 From： https://www.cnblogs.com/RUI2022/p/16998326.html
<html lang="en">
<head>
<meta charset="UTF-8">
<title>表格学习</title>
</head>
<body>
<!--表格table
tr 行
td 列-->
<table border="1px">
<tr>
<!--colspan跨列-->
<td colspan="4">1-1</td>
</tr>
<tr>
<!--rowspan跨行 -->
<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>