반복문 for2

using System;

namespace HelloWorld
{
    internal class Program
    {
        static void Main(string[] args)
        {
            for(int i=1; i < 6; i++)
            {
                if(i%2 == 0)
                {
                    Console.WriteLine("{0} : 짝",i);
                }
                else
                {
                    Console.WriteLine("{0} : 홀", i);
                }
            }
        }
    }
}

using System;
using System.Diagnostics.CodeAnalysis;

namespace HelloWorld
{
    internal class Program
    {
        static void Main(string[] args)
        {
            int sum = 0;
            for(int i=1; i<11; i++) 
            {
                Console.WriteLine(i);
                sum += i;
            }
            Console.WriteLine("-------------");
            Console.WriteLine("sum : {0}",sum);
        }
    }
}

using System;
using System.Diagnostics.CodeAnalysis;

namespace HelloWorld
{
    internal class Program
    {
        static void Main(string[] args)
        {
            Console.Write("구구단의 단수를 입력하세요");
            string num = Console.ReadLine();
            int j = Convert.ToInt32(num);
            if (j < 1 || j > 9)
            {
                Console.WriteLine("출력 불가");
            }
            else {
                for (int i = 1; i < 10; i++)
                {
                    Console.WriteLine("{0} X {1} = {2}", j, i, j * i);
                }
            }
        }
    }
}