主要就是合并单元格其他没什么难度
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
th{
background: red;
}
</style>
</head>
<body>
<table border="1">
<tr>
<th>星期</th>
<th>一</th>
<th>二</th>
<th>三</th>
<th>四</th>
<th>五</th>
</tr>
<tr>
<td rowspan="2">上午</td>
<td>6</td>
<td>6</td>
<td>6</td>
<td>6</td>
<td>6</td>
</tr>
<tr >
<td>7</td>
<td>7</td>
<td>7</td>
<td>7</td>
<td>7</td>
</tr>
<tr>
<td rowspan="2">下午</td>
<td>6</td>
<td>6</td>
<td>6</td>
<td>6</td>
<td>6</td>
</tr>
<tr >
<td>7</td>
<td>7</td>
<td>7</td>
<td>7</td>
<td>7</td>
</tr>
</table>
</body>
</html>
随便搜索百度编辑器 或者各种编辑器 都有表格制作 然后看代码就行 不然就在excel 制作完成后再复制粘贴到编辑器 再看代码 so ease