Html escape character table viewing tool

Escape Sequence is also called Character Entity.

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In HTML, escape strings are defined for two reasons:
The first reason is that symbols like "<" and ">" are already used to represent HTML tags, so they cannot be used directly as symbols in text. In order to use these symbols in HTML documents,
You need to define its escape string. When the interpreter encounters such a string, it interprets it as a real character. When entering escape strings, strictly follow the rules for upper and lower case letters.
The second reason is that some characters are not defined in the ASCII character set, so they need to be represented by escaped strings.