如何获得制表符？ [英] How to get a tab character?

问题描述

在HTML中，标签没有字符，但我很困惑，为什么我可以在这里复制和粘贴一个：。 （你看不到它的全部宽度，但如果你点击编辑我的问题，你会看到这个字符。）如果我可以复制和粘贴一个制表符，应该有一个相同的unicode，可以编码成html 。我知道它不存在，但这是一个我从未能够掌握的谜题。

In HTML, there is no character for a tab, but I am confused as to why I can copy and paste one here: . (You can't see the full width of it, but if you click to edit my question, you will see the character.) If I can copy and paste a tab character, there should be a unicode equivalent that can be coded into html. I know it doesn't exist, but this is a mystery I've never been able to grasp.

所以我的问题是：为什么没有一个unicode字符一个标签，即使我可以复制和粘贴它吗？

So my question is: why is there not a unicode character for a tab even if I can copy and paste it?

推荐答案

确保有一个标签实体：

	

（该选项卡是ASCII字符9，或Unicode U + 0009。）

(The tab is ASCII character 9, or Unicode U+0009.)

然而，就像文字标签（你输入到文本编辑器的标签）一样，所有标签字符被HTML解析器视为空白，并折叠为一个空格，除 < pre> 块，其中文字标签将呈现为 8个空格以等宽字体显示。

However, just like literal tabs (ones you type in to your text editor), all tab characters are treated as whitespace by HTML parsers and collapsed into a single space except those within a <pre> block, where literal tabs will be rendered as 8 spaces in a monospace font.

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