Several commonly used special symbols in HTML

A＋B3>1
(displayed as A＋B3>1)Example 2: The
′&′ symbol is generally not used. As long as there is no ambiguity, there is no need to replace it with '&'. For example:
′if (ac)' can be expressed by the statement
if (a<b&&b>c), Instead of using if (a<b&&b>c), ′<′ must be expressed by the statement &lt, and cannot be expressed by < (displayed as <). Example 3:
substitution. The English letters in the directive must be in the same case in the HTML statement, that is, they must be all uppercase or all lowercase, and cannot be mixed in uppercase and lowercase. For example: the
'<' symbol can be '<' or '<'. represents, but cannot use '&Lt' or '&lT' to represent



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