<!doctype html>
<html>
<head>
<meta charset="UTF-8">
<meta name="Generator" content="EditPlus®">
<meta name="Author" content="">
<meta name="Keywords" content="">
<meta name="Description" content="">
<title>Document</title>
</head>
<body>
<table border="1" cellpadding="10">
<tr>
<td rowspan="5">表格</td>
<td rowspan="3">表格</td>
<td rowspan="2">表格</td>
<th colspan="3">表格</th>
<td>表格</td>
</tr>
<tr>
<td rowspan="2">表格</td>
<th colspan="2">表格</th>
<td>表格</td>
</tr>
<tr>
<td>表格</td>
<th colspan="2">表格</th>
<td>表格</td>
</tr>
<tr>
<td>表格</td>
<td>表格</td>
<td>表格</td>
<td>表格</td>
<th colspan="2">表格</th>
</tr>
<tr>
<td>表格</td>
<td>表格</td>
<td>表格</td>
<td>表格</td>
<th rowspan="2">表格</th>
<th rowspan="2">表格</th>
</tr>
<tr>
<td>表格</td>
<td>表格</td>
<td>表格</td>
<td>表格</td>
<td>表格</td>
</tr>
<tr>
<td>表格</td>
<td>表格</td>
<td>表格</td>
<td>表格</td>
<td>表格</td>
<td>表格</td>
<td>表格</td>
</tr>
</table>
</body>
</html>
</style><style type="text/css">
table
{
border-collapse: collapse;
}
</style>
加上这个就好
border-collapse : separate(默认) | collapse | inherit
separate : 边框独立
效果图：
collapse : 相邻边被合并
效果图：
inherit:规定应当从父元素持续 border-collapse 属性的值。
<style type="text/css">
table
{
border-collapse: collapse;
border: none;
width: 200px;
}
td
{
border: solid #000 1px;
}
</style>