为什么他们不赞成使用预格式化文本的宽度属性？
的width属性定义了每行的最大字符长度，在 HTML 4.01 中已被弃用，并且在当前的 HTML5 草案中我不再看到它。我在 W3C 的 HTML 工作组的邮件列表中找不到其背后的原因（也许我搜索错误），尽管 4.01 的规范表示并非所有客户端都支持它。
- 一种可能的答案是：对预先格式化的文本进行换行是没有意义的。这是真的吗？
- 如果我仍然希望它在 30 个字符后换行。除了脚本之外，我如何实现这一目标？
The width attribute for <pre>, which defines maximum character length per line, was deprecated in HTML 4.01, and I no longer see it in current draft of HTML5. I couldn't find the reason behind it in the mailing lists of W3C's WG for HTML (maybe I searched wrong), although the specs for 4.01 said it was not supported in all clients.
- One possible answer: it makes no sense to wrap preformatted texts. Is this true?
- In case I still want it to wrap after for example 30 characters. Besides scripting, how do I achieve this?
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不推荐使用表现性定义属性，取而代之的是 CSS。您不应依赖
size、width、height属性，而应在进行标记时关注语义。 （尽管一个例外可能是用于预加载渲染目的的img元素）。Presentational defining attributes were deprecated in favor of CSS. You should not rely on
size,width,heightattributes but instead focus on semantics when doing the markup. ( Though one exception is probably theimgelement for preload rendering purposes ).不是一个结论性的答案，但看起来它已被弃用，因为它从未得到适当的支持（并且因为它是一个演示问题，因此实际上不是 HTML 应该包含的内容）......
看看它的提及 在 HTML 4.01 规范中，它提到它没有得到广泛支持，并且它用于“选择适当的字体大小或适当缩进”——这听起来与“定义每行的字符数”相去甚远。
这些旧的 HTML 元素/属性消失的正常原因是它们比 HTML 更适合 CSS——HTML 应该只是内容，而不是表示。
Not a conclusive answer, but it looks like it was deprecated because it was never properly supported (and because it's a presentational concern, and therefore not really something HTML should contain)....
Take a look at it's mention in the HTML 4.01 spec, it mentions it's not widely supported and that it's used to "select an appropriate font size or indent appropriately"--which sounds pretty far off from "defines the number of characters per row".
The normal reason for these old HTML elements/attributes to go away is that they're better aligned with CSS than HTML--HTML is supposed to be just content, not presentation.
嗯，首先，您希望将 content 与 presentation 分开，在
Well, for one, you'd want to separate content from presentation , and in the case of
<pre>, the width is purely presentational. Furthermore, it makes little sense to wrap preformatted text, as you point out. You can do that in CSS if you really want to:HTML 用于定义文档的结构，而不是用于设计文档的样式。还有一个类似的 CSS 属性，称为
width。HTML is for defining the structure of a document, not for styling of it. And there is a similar CSS property called
width.