浅谈<table>标签
总的来说,<table>是个复杂的东西,关于它的主题也很多。我想简单的复习一下<table>。
主要讨论它的结构和一些重要的属性。我将使用一种慢慢改善的方式介绍它。
1)基本的结构如下:<tr>表示表格中的一行,<td>表示一行中的一列。说一列,其实可以
把它想象成word中的单元格。<th>实际上也是单元格,只不过它用作表格标题。从语义上来
说:<td>标示表格中的数据单元,<th>表示表格中一列或者是一行的标题。
1 <table>
2 <tr><th></th></tr>
3 <tr><td><td></tr>
4 </table>
2 <tr><th></th></tr>
3 <tr><td><td></tr>
4 </table>
2)一个标题,可能是行标题,也可能是列标题,如何区分?需要使用scope属性scope=row/col。
1 <table>
2 <tr><th scope="col"></th></tr>
3 <tr><td><td></tr>
4 </table>
2 <tr><th scope="col"></th></tr>
3 <tr><td><td></tr>
4 </table>
3)表格也有自己的标题<caption>
1 <table>
2 <caption>表格标题</caption>
3 <tr><th scope="col"></th></tr>
4 <tr><td><td></tr>
5 </table>
2 <caption>表格标题</caption>
3 <tr><th scope="col"></th></tr>
4 <tr><td><td></tr>
5 </table>
4)给表格添加简介summary属性
1 <table summary="这是一个表格的内容简介">
2 <caption>表格标题</caption>
3 <tr><th scope="col"></th></tr>
4 <tr><td><td></tr>
5 </table>
2 <caption>表格标题</caption>
3 <tr><th scope="col"></th></tr>
4 <tr><td><td></tr>
5 </table>
5)表格边框模型和单元格默认padding。
表格边框有两种显示方式:分离和合并。border-collapse: separate/collapse IE6默认的样式是
分离的,看起来像立体的。实际上,不过是每个单元格都有自己独立的边框。合并则是共享边框。
table { border-collapse: collapse; }
单元格之间默认是有空白的,可以用border-spacing控制它,因为IE6不支持,所以很少用到。IE6
使用cellspacing。
1 <table summary="这是一个表格的内容简介" cellspacing="0">
2 <caption>表格标题</caption>
3 <tr><th scope="col"></th></tr>
4 <tr><td><td></tr>
5 </table>
2 <caption>表格标题</caption>
3 <tr><th scope="col"></th></tr>
4 <tr><td><td></tr>
5 </table>
6)添加一些行和列。并给每一个<th>添加一个id。
1 <table summary="这是一个表格的内容简介" cellspacing="0">
2 <caption>表格标题</caption>
3 <tr>
4 <th scope="col" id="name">姓名</th>
5 <th scope="col" id="address">地址</th>
6 <th scope="col" id="databirthday">出生日期</th>
7 </tr>
8
9 <tr>
10 <td>ewee<td>
11 <td>hubei<td>
12 <td>19870102<td>
13 </tr>
14
15 <tr>
16 <td>rewe<td>
17 <td>wuhan<td>
18 <td>419880103<td>
19 </tr>
20
21 <tr>
22 <td>ertww<td>
23 <td>yichang<td>
24 <td>19870205<td>
25 </tr>
26
27 </table>
2 <caption>表格标题</caption>
3 <tr>
4 <th scope="col" id="name">姓名</th>
5 <th scope="col" id="address">地址</th>
6 <th scope="col" id="databirthday">出生日期</th>
7 </tr>
8
9 <tr>
10 <td>ewee<td>
11 <td>hubei<td>
12 <td>19870102<td>
13 </tr>
14
15 <tr>
16 <td>rewe<td>
17 <td>wuhan<td>
18 <td>419880103<td>
19 </tr>
20
21 <tr>
22 <td>ertww<td>
23 <td>yichang<td>
24 <td>19870205<td>
25 </tr>
26
27 </table>
7)对表格进行逻辑划分 <thead><tbody><tfoot>,把表格分成多个逻辑区域后,可以用CSS更好
的控制表现。
1
<table summary="这是一个表格的内容简介" cellspacing="0">
2
<caption>表格标题</caption>
3
<thead>
4
<tr>
5
<th scope="col" id="name">姓名</th>
6
<th scope="col" id="address">地址</th>
7
<th scope="col" id="databirthday">出生日期</th>
8
</tr>
9
</thead>
10![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
11
<tbody>
12
<tr>
13
<td>ewee<td>
14
<td>hubei<td>
15
<td>19870102<td>
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</tr>
17
18
<tr>
19
<td>rewe<td>
20
<td>wuhan<td>
21
<td>419880103<td>
22
</tr>
23
24
<tr>
25
<td>ertww<td>
26
<td>yichang<td>
27
<td>19870205<td>
28
</tr>
29
<tbody>
30
31
</table>
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我的这篇随笔只简单讲一讲表格的结构,希望有用。