在HTML中,表格不应该用于布局,这似乎是普遍的观点。

Why?

我从来没有(老实说,很少)看到过支持这一点的有力论据。通常的答案是:

It's good to separate content from layoutBut this is a fallacious argument; Cliche Thinking. I guess it's true that using the table element for layout has little to do with tabular data. So what? Does my boss care? Do my users care?Perhaps me or my fellow developers who have to maintain a web page care... Is a table less maintainable? I think using a table is easier than using divs and CSS.By the way... why is using a div or a span good separation of content from layout and a table not? Getting a good layout with only divs often requires a lot of nested divs. Readability of the codeI think it's the other way around. Most people understand HTML, few understand CSS. It's better for SEO not to use tablesWhy? Can anybody show some evidence that it is? Or a statement from Google that tables are discouraged from an SEO perspective? Tables are slower.An extra tbody element has to be inserted. This is peanuts for modern web browsers. Show me some benchmarks where the use of a table significantly slows down a page. A layout overhaul is easier without tables, see css Zen Garden.Most web sites that need an upgrade need new content (HTML) as well. Scenarios where a new version of a web site only needs a new CSS file are not very likely. Zen Garden is a nice web site, but a bit theoretical. Not to mention its misuse of CSS.

我对使用divs + CSS而不是表的良好参数非常感兴趣。


当前回答

我没有对DIVs有利的论据。

我会说:如果事实属实,那就接受吧。

值得注意的是,要找到一种好的DIV+CSS方法来在两列或三列中呈现内容,并且在所有浏览器上都是一致的,并且看起来仍然是我想要的方式,即使不是不可能,也是很困难的。

在我的大多数布局中,这让平衡感向表格倾斜了一点,尽管我对使用它们感到内疚(不知道为什么,人们只是说它不好,所以我试着听他们的),最后,务实的观点是,对我来说,使用表格更容易、更快。我不是按小时计酬的,所以桌子对我来说比较便宜。

其他回答

The issue of strictly separating presentation and content strikes me as roughly analogous to separating header files from implementation files in C++. It makes sense, but it can also be a pain. Witness Java and C# where classes are defined in a single source file. The authors of the newer languages noticed something that was causing programmers headaches and they got rid of it. That seems to be the gist of this discussion. One side is saying CSS is too difficult, the other side is saying one must become a CSS master.

对于简单的布局问题,为什么不改变表示必须完全独立的规则呢?一个新的标签(或者一些div标签的扩展)可以让我们直接在HTML中控制显示?毕竟,我们不是已经将表示泄露到HTML中了吗?看看h1, h2, h6。我们都知道这些控制表示。

阅读代码(HTML就是代码)的能力非常重要。专家们往往忽略了使编程环境尽可能为大众所接受的重要性。认为只有专业程序员才重要是非常短视的。

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。

CSS/DIV - it's just jobs for the design boys, isn't it. The hundreds of hours I've spent debugging DIV/CSS issues, searching the Internet to get some part of markup working with an obscure browser - it drives me mad. You make one little change and the whole layout goes horrendously wrong - where on eath is the logic in that. Spending hours moving something 3 pixels this way then something else 2 pixels the other to get them all to line up. This just seems plain wrong to me somehow. Just because you're a purist and something is "not the right thing to do" doesn't mean you should make use of it to the nth degree and under all circumstances, especially if it makes your life 1000 times easier.

So I've finally decided, purely on commercial grounds, although I keep use to minimum, if I anticipate 20 hours work to get a DIV placed correctly, I'll stick in a table. It's wrong, it upsets the purists, but in most cases it costs less time and is cheaper to manage. I can then concentrate on getting the application working as the customer wants, rather than pleasing the purists. They do pay the bills after all and my argument to a manager enforcing the use of CSS/DIV - I would merely point out the customers pay his salary as well!

所有这些CSS/DIV争论出现的唯一原因是因为CSS的缺点,首先是因为浏览器之间不兼容,如果它们相互兼容,世界上一半的网页设计师将失业。

When you design a windows form you don't try moving controls around after you have laid them out so I kind of think it's strange to me why you would you want to do this with a web form. I simply can't understand this logic. Get the layout right to start with and what's the problem. I think it's because designers like to flirt with creativity, whilst application developers are more concerned with actually getting the application working, creating business objects, implementing business rules, working out how bits of customer data relates to each other, ensuring the thing meets the customers requirements - you know - like the real world stuff.

不要误解我的意思,这两种观点都是正确的,但是请不要因为开发人员选择了一种更简单、更合乎逻辑的方式来设计表单而批评他们。我们常常有比正确使用表而不是div的语义更重要的事情要担心。

在这个讨论的基础上,我将一些现有的tds和trs转换为div。花了45分钟把它弄得乱七八糟想把所有东西都排列整齐然后我就放弃了。td在10秒后回来-工作-立即-在所有浏览器上,没有更多的事情要做。请试着让我明白——你有什么理由让我用其他方式做这件事!

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。

我曾经处理过一个包含6层嵌套表的网站,这个网站是由一些应用程序生成的,并且生成了无效的HTML,事实上,我花了3个小时的时间来纠正它,因为一个小的改变。

这当然是边缘情况,但是基于表的设计是不可维护的。如果你使用css,你分离了样式,所以在修复HTML时,你不必担心破坏。

同样,用JavaScript试试这个方法。将单个表单元格从一个位置移动到另一个表中的另一个位置。执行起来相当复杂,div/span只需要复制粘贴即可。

“我的老板在乎吗?”

如果我是你的老板。你会在乎的。,)如果你珍视你的生命。