using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"([a-zA-Z]|\s|^)((\+84|0)(1[2689]|9)+[0-9]{8})([a-zA-Z]|\s|$)";
string input = @"0989914009 nguyeng quangthang0989914009 thang 9301234567898 123 01201234567892 0989914009 nguyeng quang nn thang +84989914009
nmv nguyeng quang thang0989914009";
foreach (Match m in Regex.Matches(input, pattern))
{
Console.WriteLine("'{0}' found at index {1}.", m.Value, m.Index);
}
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for C#, please visit: https://msdn.microsoft.com/en-us/library/system.text.regularexpressions.regex(v=vs.110).aspx