CSharpHello3

// C#程式
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace CSharpHello3
{
    public class Program
    {
        public static void Main(string[] args)
        {
            Console.WriteLine("Hello world.");
            Console.Read();
        }
    }
}