string類型自己是按值來操做，可是加上(object)後就轉爲引用類型的了

 

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

namespace ArraysType
{
    class Program
    {
        static void Main(string[] args)
        {
            #region 基本類型的最大值和最小值
            byte bMax = byte.MaxValue;
            byte bMin = byte.MinValue;

            Console.WriteLine(bMax);
            Console.WriteLine(bMin);

            short sMax = short.MaxValue;
            short sMin = short.MinValue;

            Console.WriteLine(sMax);
            Console.WriteLine(sMin);

            int iMax = int.MaxValue;
            int iMin = int.MinValue;

            Console.WriteLine(iMax);
            Console.WriteLine(iMin);

            char cMax = char.MaxValue;
            char c = '趙';
            Console.WriteLine(c);


            Console.WriteLine(cMax);
            
            #endregion

            #region string類型的練習
            string str1 = "中國人";
            string str2 = "中國人";
            if (str1 == str2)
            {
                Console.WriteLine("\n這兩個相等");
            }

            if ((object)str1 == (object)str2)
            {
                Console.WriteLine("他們的object對象相等");
            }

            if (str1.Equals(str2))
            {
                Console.WriteLine("是同一個變量");
            }


            string str3 = str1;
            str3 = "新中國人";

            Console.WriteLine("\nstr1:{0}，\nstr3:{1}\n",str1,str3);

            string str4 = "中";
            str4 = str4+"國人";
            if (str1 == str4)
            {
                Console.WriteLine("這兩個相等");
            }

            if ((object)str1 == (object)str4)
            {
                Console.WriteLine("他們的object對象相等");
            }

            if (((object)str1).Equals((object)str4))
            {
                Console.WriteLine("是同一個變量");
            }


            #endregion

            char cc = 'c';
            char a = 'a';
            Console.WriteLine("{0},{1}",cc,a);
            Console.ReadLine();

        }
    }
}





==，(object),equals這三者之間的區別在這個程序中有了初步的判斷，對於按值和按引用類型的操做有的真實的程序來比較。記住默認的和加範圍以後的區別，這是關鍵所在。
string類型從來是比較特殊的！