regular expression split string

Match Method Performs a lookup on a string using the regular expression pattern and returns the result that contains the lookup as an array. Stringobj.match (RGEXP) Parameters Stringobj Required option. A string object or string literal to find it.

Document directory C {n} C {m, n} C {n ,} *, + ,? Greedy and non-greedy Matching results of sub-regular expressions are not recorded Forward pre-Query ?! Global match, modifier g Case-insensitive, modifier I The end of the first line,

Original author: a.m. kuchling (amk@amk.ca) Licensing: Authoring Sharing protocol Translation staff: Firehare Proofreading Staff: Leal Applicable version: Python 1.5 and subsequent versions http://wiki.ubuntu.org.cn/Python%E6%AD%A3%E5%88%99%E8%A1%A8%

On regular expressions, regular expressions First, what is a regular expression? Simply put: Regular expressions (Regular expression) is a language that handles string matching; A regular expression describes a pattern of string matches that can be

The String method that matches the regular expression pattern. The regular expression is string. In JavaScript code, regular expressions are used for pattern matching. Some methods of String objects and RegExp objects are often used, such as replace,

RegExp Direct volume and creation of objects As with strings and numbers, it is obvious that the original type of direct quantity for each value in the program represents the same value. A new object is created each time the program runs with the

By its very nature, a regular expression (or RE) is a small, highly specialized programming language that is embedded in Python and implemented through the RE module. With this small language, you can specify rules for the set of strings that you

Regular expressions can: • Test a pattern for a string. For example, you can test an input string to see if there is a phone number pattern or a credit card number pattern in the string. This is called data validation • Replace text. You can use a

Regular expressions can:• Test a pattern for a string. For example, you can test an input string to see if there is a phone number pattern or a credit card number pattern in the string. This is called data validation • Replace text. You can use a

EXEC () retrieves the specified value in the string, returns a value that is found, and returns null if no match is found: The main regexp pattern matching method is exec (), similar to the match method for the string object described in the