The wonderful use of the tbody tag to speed up the display of table content_HTML/Xhtml_web page production

You must have saved other people's webpages and looked at them, especially when you open them with dw, you will see that many webpages have the tag added to them. The yellow tag is very conspicuous in dw, so < tbody>What is it?
Use the TBODY tag to control the downloading of tables in separate rows, allowing the content to be downloaded before other things on the webpage (such as pictures). This allows others to see the substantive content of the webpage first without having to wait. After a while, add and where you need to download the branch, for example:

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Usage of tbody tag

The table attributes independently launched by IE and supported by the HTML3.0 specification are:
< ;THEAD> - specifies the Table head
- specifies the Table body
- specifies the Table footer
- used to group column alignments
< COL> - used to specify individual column alignments
The following is an example I made, it is a bit annoying, friends can take a look. The main purpose of these attributes can only be reflected in SCRIPT-driven dynamic effects.

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Flying Gull Island

Feiou Island

Fei Gull Island

Flying Gull Island

A section of the Comparison Table

This is <TFOOT> content

Element	Internet Explorer	Netscape	Mosaic
	X	X	X
<BASE ...>	X	X	X
...HREF	X	X	X
...TARGET	X	X
<BASEFONT ...>	X	X
...SIZE	X (only visible when FONT SIZE= used as well)	X
...FACE	X
<BGSOUND ...>	X		X (will spawn player for .mid files)
...	[...	...]	...

tbody据说是加强对表格的控制能力的，但是经过我多次实验实在是没有什么用处。
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一、DW根本就不生成 tbody 代码
二、DW根本就不认 tbody 代码
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tbody代码如果不是你用手写的话只有在你用IE5打开一个网页的时候，把它另存为一下的时候，你的另存为的文件的表格就会生成tbody代码。（即便你的表格根本就没有tbody代码，IE5另存为时也会给你生成）你可以做一个表格，用ie打开然后另存为，看你另存为的文件的代码。（罗嗦了！！！）
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可以认为只有IE5+才能认tbody
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我不知道FP能不能生成tbody。我没用过。