C# 参数传递

 using System;
using System.Collections.Generic;
using System.Text;
namespace ConsoleApplication1
{
    class Method
    {
        public static void ValueMethod(int i)
        {
            i++;
        }
        public static void ReferenceMethod(ref int i)
        {
            i++;
        }
        public static void OutputMethod(out int i)
        {
            i = 0;
            i++;
        }
        static void Main()
        {
            int i = 0;
            ValueMethod(i);
            Console.WriteLine("i="+i);
            int j = 0;
            ReferenceMethod(ref j);
            Console.WriteLine(j);
            int k = 0;
            OutputMethod(out k);
            Console.WriteLine(k);
            Console.Read();
        }
    }
}