为什么HTML字符实体需要？ [英] Why are HTML character entities necessary?

问题描述

为什么HTML字符实体需要？他们有什么好处？我没有看到这一点。

Why are HTML character entities necessary? What good are they? I don't see the point.

推荐答案

两件主要事情。

1. 它们允许您使用当前字符集中未定义的字符。例如，您可以合法地使用ASCII作为字符集，并且仍然包含任意Unicode字符的实体。


2. 正如Simon所说，他们让你引用HTML给出特殊含义的字符。 >
   

1. They let you use characters that are not defined in a current charset. E.g., you can legally use ASCII as the charset, and still include arbitrary Unicode characters thorugh entities.
2. They let you quote characters that HTML gives special meaning to, as Simon noted.

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