Regular expressions for matching Chinese characters _ regular expressions

\w match only Chinese, numbers, letters, for the Chinese people, only match the English will often use, see

Copy Code code as follows:

Matching regular expressions for Chinese characters: [\U4E00-\U9FA5]

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

Copy Code code as follows:

Match Double-byte characters (including Chinese characters): [^\x00-\xff]

Note: Can be used to calculate the length of a string (a double-byte character length meter 2,ascii character 1)

PS: About regular, this site also provides 2 very simple and practical regular expression tool for everyone to refer to use:

JavaScript Regular expression online test tool:
Http://tools.jb51.net/regex/javascript

Regular expression online generation tool:
Http://tools.jb51.net/regex/create_reg