regex numeric only

Regular expressions is a set of syntax matching rules. Various languages, such as Perl,. Net, and Java, have their own shared Regular Expression Libraries. In. Net, this class library is called Regex.To put it simply, Regex is an application class

From http://hui06242007.blog.163.com/blog/static/46967621200851931436619/ C # RegEx in-depth Regular Expressions Regular Expressions is a set of syntax matching rules. Various languages, such as Perl,. net, and Java, have their own shared Regular

The namespace using system. Text. regularexpressions needs to be introduced. (If this parameter is not introduced, system. Text. regularexpressions. RegEx must be written when RegEx is written) Replace method of Regular Expression String T = "sdf1234

The Regex class represents a regular expression that is not mutable (read-only). It also contains a variety of static methods that allow you to use other regular expression classes without explicitly creating instances of other classes. Overview of

C # Regular Expression Regex class usage, I. C # Regular Expression symbol Mode   Character Description \ Escape Character, escape a character with special functions into a common character, or vice versa ^ Match

(4) RegEx, RegEx, and RegEx Content of this chapter: Decorator Re Regular Expression Decorator The decorator is a well-known design model and is often used in scenarios with cut-plane requirements. It is more classic in terms of

C # Regular expression notation pattern Characters Description \ An escape character that escapes a character with special functionality to a normal character, or vice versa ^ Match the

C # Regular expression notation pattern Characters Description \ An escape character that escapes a character with special functionality to a normal character, or vice versa ^ Match the

1 Front phone number finder can work, but use a lot of code, do things Limited; The Isphonenumber () function has 17 rows, but only one phone number pattern can be found. Like 415.555.4242 or (415) 555-4242 Such a phone number format, how to check?

Specific use can refer to: http://blog.csdn.net/tsinfeng/archive/2010/07/16/5739366.aspx Public bool isint (string Str){// ^ ([+-]?) Indicates that the addition/subtraction sign can only appear at the beginning of a string and has only one/// D *