Regular Expression - 正则表达式
Regular Expression: (regex or regexp) is a sequence of characters that forms a search pattern,mainly for use in pattern matching with strings,or string matching. (From wiki) Lists of a particular category of characters,operators and constructs that can be used to define regular expressions: Character Escapes:
Character Classes: matches any one of a set of characters.
Anchors: cause a match to succeed or fail depending on the current position in the string.
Grouping Constructs
Quantifiers:
Backreference Constructs: allows a previously matched subexperession to be identified subsequently in the same regular expression.
Alternation Constructs: Modify a regular expression to enable either/or matching.
Substitutions: are regular expression language elements that are supported in replacement patterns.
Regular Expression Options:
Miscellaneous Constructs:
References:http://msdn.microsoft.com/en-us/library/az24scfc(v=vs.110).aspx (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |