console
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=, initial-scale=">
<meta http-equiv="X-UA-Compatible" content="">
<title></title>
</head>
<body>
<table width="500" brder="1" rules="all" frame="box" cellpadding="10">
<caption>课程表</caption>
<th bgcolor="pink">星期一</th>
<th bgcolor="pink">星期二</th>
<th bgcolor="pink">星期三</th>
<th bgcolor="pink">星期四</th>
<th bgcolor="pink">星期五</th>
<tr align="center">
<td rowspan="2">语文</td>
<td>数学</td>
<td>化学</td>
<td>英语</td>
<td>生物</td>
</tr>
<tr align="center">
<td>数学</td>
<td>化学</td>
<td>英语</td>
<td>生物</td>
</tr>
<tr align="center">
<td colspan="5">课间活动</td>
</tr>
<tr align="center">
<td>语文</td>
<td>数学</td>
<td>化学</td>
<td>英语</td>
<td>生物</td>
</tr>
<tr align="center">
<td>语文</td>
<td>数学</td>
<td>化学</td>
<td>英语</td>
<td>生物</td>
</tr>
</table>
</body>
</html>
<br>
<br>
<br>
<body>
<table border="1" cellspacing="0">
<tr>
<td>2018年</td>
<td>2019年</td>
<td>2020年</td>
</tr>
<tr>
<td>
<table border="1" cellspacing="0">
<tr>
<td>上半年</td>
<td>下半年</td>
</tr>
<tr>
<td>8000</td>
<td>9000</td>
</tr>
</table>
</td>
<td>
10000
</td>
<td>
12000
</td>
</tr>
</table>
</body>
</html>