字符类的英文

例句与用法

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1. Determines whether a character is in a character class
   确定字符是否在字符类中。
2. The important point , though , is to realize that essentially
   以下是可用字符类的相当完整的列表：
3. Note that white space is never eliminated from within a character class
   ）请注意，空白永远不会从字符类中消除。
4. Category represents " symbol , math "
   字符类说明
5. Matches any character in the unicode general category or named block specified by
   指定的命名字符类中的任何字符都匹配。