html <escape character-Front-end Q&A-php.cn

HTML

HTML is a markup language used to build web pages, which contains many special characters and symbols, such as <, >, etc. In HTML, these symbols have special meanings, so when these symbols are used directly, errors or parsing exceptions will occur. To solve this problem, HTML provides a set of special character escape mechanisms that can use escape characters to represent these special symbols.

The most commonly used escape character is <, and its escape character is <. Similarly, the escape character for > is >. These escaped characters can be used in HTML like normal characters without causing syntax errors or parsing exceptions.

In addition to <, >, HTML also provides many other escape characters, such as:

& means & symbol
" means double quotation marks
' means Single quotation mark
represents a space character
© represents a copyright symbol
® represents a registered trademark symbol
™ represents a trademark symbol

These escape characters can be used in HTML, but you need to pay attention Yes, in some cases, these characters may not be parsed correctly. For example, when used in CSS code, different escape characters must be used. When used in XML documents, other issues such as namespaces also need to be considered.

In addition, HTML5 also introduces some new character entities, such as ‌ and ‍, which represent zero-width non-ligatures and zero-width ligatures respectively. These character entities are mainly to support more complex typesetting and text processing. Introduced.

In general, escape characters are an indispensable part of HTML writing. It can conveniently represent various special characters and symbols while ensuring the correct parsing of HTML code. However, Please note that different environments and language specifications may need to be considered when using different escape characters.

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