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

namespace Object.Equals_方法
{
    class Program
    {
        static void Main(string[] args)
        {   
            //public override bool Equals (
            //Object obj
            //)
            //如果 obj 是 Int32 的实例并且等于此实例的值，则为 true；否则为 false。

            Int32 myVariable1 = 60;
            Int32 myVariable2 = 60;

            //Int16 myVariable2 = 60;//此时打印和上面一样

            //Int64 myVariable2 = 60;//此时不一样

            // Get and display the declaring type.
            Console.WriteLine("\nType of 'myVariable1' is '{0}' and" +
                 " value is :{1}", myVariable1.GetType(), myVariable1);
            Console.WriteLine("Type of 'myVariable2' is '{0}' and" +
                 " value is :{1}", myVariable2.GetType(), myVariable2);

            // Compare 'myVariable1' instance with 'myVariable2' Object.
            if (myVariable1.Equals(myVariable2))   
                Console.WriteLine("\nStructures 'myVariable1' and " +
                      "'myVariable2' are equal");
            else
                Console.WriteLine("\nStructures 'myVariable1' and " +
                      "'myVariable2' are not equal");

            if(object.Equals(myVariable1,myVariable2))
                Console.WriteLine("\nStructures 'myVariable1' and " +
                      "'myVariable2' are equal");
            else
                Console.WriteLine("\nStructures 'myVariable1' and " +
                      "'myVariable2' are not equal");

            Console.WriteLine(myVariable1 == myVariable2);//但自定义的结构类型，不能用==进行比较，而自定义的类可以用==进行比较
        
            
            if(ReferenceEquals(myVariable1,myVariable1))  
                Console.WriteLine("\nStructures 'myVariable1' and " +
                      "'myVariable2' are equal");
            else
                Console.WriteLine("\nStructures 'myVariable1' and " +
                      "'myVariable2' are not equal");

            
            Console.ReadKey();
        }
    }
}