示例：
using System;
using System.Collections.Generic;
using System.Text;
namespace Example01
{
    class Program
    {
        class Class1
        {
            public static String staticStr = "Class";
            public String notstaticStr = "Obj";
        }
        static void Main(string[] args)
        {
            //靜態變量通過類進行訪問，該類所有實例的同一靜態變量都是同一個值
            Console.WriteLine("Class1's staticStr: {0}", Class1.staticStr);
            Class1 tmpObj1 = new Class1();
            tmpObj1.notstaticStr = "tmpObj1";
            Class1 tmpObj2 = new Class1();
            tmpObj2.notstaticStr = "tmpObj2";
            //非靜態變量通過對象進行訪問，不同對象的同一非靜態變量可以有不同的值
            Console.WriteLine("tmpObj1's notstaticStr: {0}", tmpObj1.notstaticStr);
            Console.WriteLine("tmpObj2's notstaticStr: {0}", tmpObj2.notstaticStr);
            Console.ReadLine();
        }
    }
}