包装和解包

int变量可以用ToString方法隐式的转换为一个System.Object对象，这个过程叫包装；一个System.Object也可以转换为一个值变量，这个过程叫解包

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

namespace ConsoleApplication2
{
    class Program
    {
        static void Main(string[] args)
        {
            int myInt1 = 10;

            //包装
            Console.WriteLine("myInt1.ToString() = " + myInt1.ToString());
            Console.WriteLine("myInt1.GetType() = " + myInt1.GetType());

            int myInt2 = 10;
            object myObject = myInt2;
            Console.WriteLine("myInt2 =" + myInt2);
            Console.WriteLine("myObject =" + Int2);

            //解包

            int myInt3 = (int)myObject;
            Console.WriteLine("myInt3 = " + myInt3);
        }
    }
}