C#语言入门01

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp1
{
    class Program
    {
        static void Main(string[] args)
        {

            Console.WriteLine(" hello  world!!");
            Console.WriteLine("天下第一家");
            Console.ReadKey();
        }
    }
}