c# 정규식(RegularExpressions)



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using System;
using System.Collections.Generic;
using System.Text;
using System.Threading.Tasks;
using System.Text.RegularExpressions;
 
namespace ConsoleApplication8
{
    class Program
    {
        static void Main(string[] args)
        {
            /***************************************************/
            /* 숫자가 있는지 확인 */
            /***************************************************/
            Regex regex = new Regex("[0-9]");
 
            string test1 = "Hello";
 
            if (regex.IsMatch(test1) == true)
            {
                Console.WriteLine("Number is exists.");
            }
            else
            {
                Console.WriteLine("Number is not exists.");
            }
 
            string test2 = "Year:2017";
 
            if (regex.IsMatch(test2) == true)
            {
                Console.WriteLine("Number is exists.");
            }
            else
            {
                Console.WriteLine("Number is not exists.");
            }
 
            /***************************************************/
            /* 숫자가 있는지 확인 */
            /***************************************************/
            Regex regex2 = new Regex("[^0-9]");
 
            string test3 = "Hello";
 
            if (regex2.IsMatch(test3) == true)
            {
                Console.WriteLine("Number is not exists.");
            }
            else
            {
                Console.WriteLine("Number is exists.");
            }
 
            string test4 = "2017";
 
            if (regex2.IsMatch(test4) == true)
            {
                Console.WriteLine("Number is not exists.");
            }
            else
            {
                Console.WriteLine("Number is exists.");
            }
            
            Console.ReadLine();
        }
    }
}
 
cs

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