How to realize the regular expression of matching Chinese characters

This article is about how to implement regular expressions that match Chinese characters. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

\ w matches only Chinese, numbers and letters. For Chinese people, only matching Chinese is often used, see below

Regular expressions that match Chinese characters: [\ u4e00 -\ u9fa5]

Maybe you also need to match double-byte characters. Chinese is also double-byte characters.

Match double-byte characters (including Chinese characters): [^\ X00 -\ xff]

Note: it can be used to calculate the length of a string (a double-byte character length meter 2recom ASCII character counter 1)

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