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  1. Imports System
  2. Imports System.Text.RegularExpressions
  3.  
  4. Public Class Test
  5. 	Public Shared Sub Main()
  6. 		Dim rx As Regex = New Regex("\A2[0-9]{9}(?:\r\n2[0-9]{9})*\z")
  7.     	Console.WriteLine(rx.IsMatch("2123123123"))
  8. 	End Sub
  9. End Class
Success #stdin #stdout 0.03s 24576KB
comments (?)
stdin 
Standard input is empty
stdout 
True
https://ideone.com/vNYHTC
language:
VB.NET (mono-3.10)
created:
8 years ago
visibility:
secret

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