I still don't quite understand how divs / CSS make it easier to change a page design when you consider the amount of testing to ensure the changes work on all browsers, especially with all the hacks and so on. Its a hugely frustrating and tedious process which wastes large amounts of time and money. Thankfully the 508 legislation only applies to the USA (land of the free - yeah right) and so being as I am based in the UK, I can develop web sites in whatever style I choose. Contrary to popular (US) belief, legislation made in Washington doesn't apply to the rest of the world - thank goodness for that. It must have been a good day in the world of web design the day the legislation came into force. I think I'm becoming increasingly cynical as I get older with 25 years in the IT industry but I feel sure this kind of legislation is just to protect jobs. In reality anyone can knock together a reasonable web page with a couple of tables. It takes a lot more effort and knowledge to do this with DIVs / CSS. In my experience it can take hours and hours Googling to find solutions to quite simple problems and reading incomprehensible articles in forums full of idealistic zealots all argueing about the 'right' way to do things. You can't just dip your toe in the water and get things to work properly in every case. It also seems to me that the lack of a definitive guide to using DIVS / CSS "out of the box", that applies to all situations, working on browsers, and written using 'normal' language with no geek speak, also smells of a bit of protectionism. I'm an application developer and I would say it takes almost twice as long to figure out layout problems and test against all browsers than it does to create the basic application, design and implement business objects, and create the database back end. My time = money, both for me and my customers alike so I am sorry if I don't reject all the pro DIV / CSS arguments in favour of cutting costs and providing value for money for my customers. Maybe its just the way that developers minds work, but it seems to me far easier to change a complex table structure than it is to modify DIVs / CSS. Thankfully it now appears that a solution to these issues is now available - its called WPF.

通过仍然使用表格布局，我们错过了在div方面的创新。

许多人提出了解决方案，使创建布局的divs更容易。最流行的是网格架构。有基于此体系结构的动态布局生成器。查看: 1) 960。Gs和(http://grids.heroku.com/) 2)蓝图 最近也是如此。

在架构和表格布局工具方面，我还没有看到太多创新。

我想说，撇开所有的理论，实际上布局与CSS和div更快。相反，在这个方向上的创新使它变得更容易。

我尽量避免使用TABLEs，但是当我们设计复杂的表单，混合了多种控件类型和不同的标题位置，并对分组进行了非常严格的控制时，使用DIVs是不可靠的，甚至几乎是不可能的。

现在，我不会说这些表单不能重新设计以更好地适应基于DIV的布局，但是对于其中的一些表单，我们的客户坚决不改变以前版本(用经典ASP编写的)的现有布局，因为它与用户熟悉的纸质表单相似。

因为表单的表示是动态的(其中某些部分的显示是基于案例的状态或用户的权限)，所以我们使用一组堆叠的div，每个div包含一个由逻辑分组的表单元素组成的TABLE。TABLE的每一列都被分类，这样CSS就可以控制它们。这样，我们就可以关闭表单的不同部分，而不会出现在div中不是表来换行的问题。

我很惊讶地发现有些问题还没有涉及到，所以除了之前提出的所有非常有效的观点之外，以下是我的2点看法:

.1.CSS & SEO：

a) CSS used to have a very significant impact on SEO by allowing to position the content in the page wherever you want. A few years ago, Search Engines were giving a significant emphasis to "on-page" factors. Something at the top of the page was deemed more relevant to the page than something located at the bottom. "Top of the page" for a spider meant "at the beginning of the code". Using CSS, you could organize your keyword-rich content at the beginning of the code, and still position it wherever you liked in the page. This is still somewhat relevant, but on page factors are less and less important for page ranking.

b)当布局转移到CSS时，HTML页面更轻，因此对于搜索引擎蜘蛛加载更快。(蜘蛛不需要下载外部CSS文件)。快速加载页面是一个重要的排名考虑几个搜索引擎，包括谷歌

c) SEO工作通常需要测试和更改内容，这与基于CSS的布局更方便

。2。生成的内容:

用编程方式生成表要比等效的CSS布局容易得多。

foreach ($comment as $key=>$value)
{
   echo "<tr><td>$key</td><td>$value</td></tr>";
}

生成表很简单，也很安全。它是自包含的，可以很好地集成到任何模板中。用CSS做同样的事情要困难得多，而且可能根本没有任何好处:很难在飞行中编辑CSS样式表，并且内联添加样式与使用表没有什么不同(内容没有与布局分离)。

此外，在生成表时，内容(在变量中)已经与布局(在代码中)分离，使其易于修改。

这就是为什么一些设计非常好的网站(例如SO)仍然使用表格布局的原因之一。

当然，如果需要通过JavaScript对结果进行操作，那么div是值得的。

。3。快速转换测试

在找出适合特定受众的方法时，能够以各种方式更改布局以找出最佳结果是很有用的。基于CSS的布局使事情变得相当简单

。4。不同的问题有不同的解决方案

布局表通常被鄙视，因为“每个人都知道div和CSS”才是正确的方式。

然而，事实仍然是，表创建更快，更容易理解，比大多数CSS布局更健壮。(是的，CSS可以很健壮，但是在不同的浏览器和屏幕分辨率上快速浏览一下网络就会发现情况并非如此)

桌子有很多缺点，包括维护、缺乏灵活性……但是我们不要把孩子和洗澡水一起丢了。快速可靠的解决方案有很多专业用途。

前段时间，我不得不用表格重写了一个干净简单的CSS布局，因为相当一部分用户会使用对CSS支持非常差的旧版本IE

就我而言，我已经厌倦了“哦，不!”布局的表格!”

至于那些“它不是为了这个目的而设计的，因此你不应该这样使用它”的人群，这不是虚伪吗?你怎么看待所有的CSS技巧，你必须使用使该死的东西工作在大多数浏览器?他们是为了这个目的吗?

一张桌子来布置也不错。但大多数情况下，仅靠一张表是无法得到所需的布局的。很快你就有了2到3个嵌套表。这变得非常麻烦。

It IS a LOT harder to read. That's not up to opinion. There's just more nested tags with no identifying marks on them. Separating content from presentation is a good thing because it allows you to focus on what you're doing. Mixing the two leads to bloated pages that are hard to read. CSS for styles allows your browser to cache the files and subsequent requests are much faster. This is HUGE. Tables lock you into a design. Sure, not everyone needs the flexibility of CSS Zen Garden, but I've never worked on a site where I didn't need to change the design a little bit here and there. It's much easier with CSS. Tables are hard to style. You don't have very much flexibility with them (i.e. you still need to add HTML attributes to fully control a table's styles)

我大概有4年没有用表格来处理非表格数据了。我没有回头。

我真的很想建议你阅读Andy Budd的《CSS Mastery》。棒极了。

图片在ecx.images-amazon.com http://ecx.images-amazon.com/images/I/41TH5NFKPEL._SL500_BO2,204,203,200_PIsitb-dp-500-arrow,TopRight,45，-64_OU01_AA240_SH20_.jpg

在维护内容的同时进行网站维护和设计检修(这一直都在发生，尤其是在电子商务中):

内容和设计通过表格混合在一起=更新内容和设计。

内容与设计分离=更新设计和少量内容。

如果我有自己的方式，我会将内容保存在PHP中，生成XML，转换为XSLT中的标记，并使用CSS和Javascript进行交互设计。对于Java方面的东西，JSP到JSTL来生成标记。