C#基础入门之值类型和引用类型的区别详析

using System;

namespace ConsoleApp1
{
    /// <summary>
    /// 一个简单的引用类型
    /// </summary>
    public class Ref
    {
        public int iValue { get; set; }

        public Ref(int i)
        {
            iValue = i;
        }

        public override string ToString()
        {
            return $"iValue的值为：{iValue.ToString()}";
        }
    }

    /// <summary>
    /// 一个简单的值类型
    /// </summary>
    public struct Val
    {
        public int Value { get; set; }

        public Val(int i)
        {
            Value = i;
        }

        public override string ToString()
        {
            return $"Value的值为：{Value.ToString()}";
        }
    }
    class Program
    {
        static void Main(string[] args)
        {
            // 测试引用类型的赋值
            Ref ref1 = new Ref(1);
            Ref ref2 = ref1;
            // 赋值
            ref2.iValue = 2;

            // 测试值类型的赋值
            Val val1 = new Val(1);
            Val val2 = val1;
            val2.Value = 2;
            //输出
            Console.WriteLine($"ref1：{ref1}");
            Console.WriteLine($"ref2：{ref2}");
            Console.WriteLine($"val1：{val1}");
            Console.WriteLine($"val2：{val2}");
            Console.ReadKey();
        }
    }
}

using System;

namespace ConsoleApp1
{
    /// <summary>
    /// 一个简单的引用类型
    /// </summary>
    public class Ref
    {
        public int iValue { get; set; }

        public Ref(int i)
        {
            iValue = i;
        }

        public override string ToString()
        {
            return $"iValue的值为：{iValue.ToString()}";
        }
    }

    /// <summary>
    /// 一个简单的值类型
    /// </summary>
    public struct Val
    {
        public int Value { get; set; }

        public Val(int i)
        {
            Value = i;
        }

        public override string ToString()
        {
            return $"Value的值为：{Value.ToString()}";
        }
    }
    class Program
    {
        static void Main(string[] args)
        {
            //// 测试引用类型的赋值
            //Ref ref1 = new Ref(1);
            //Ref ref2 = ref1;
            //// 赋值
            //ref2.iValue = 2;

            //// 测试值类型的赋值
            //Val val1 = new Val(1);
            //Val val2 = val1;
            //val2.Value = 2;

            //输出
            //Console.WriteLine($"ref1：{ref1}");
            //Console.WriteLine($"ref2：{ref2}");
            //Console.WriteLine($"val1：{val1}");
            //Console.WriteLine($"val2：{val2}");

            // 测试引用类型的赋值
            Ref ref1 = new Ref(1);
            Ref ref2 = new Ref(1);

            // 测试值类型的赋值
            Val val1 = new Val(1);
            Val val2 = new Val(1);

            Console.WriteLine(ref1.Equals(ref2));
            Console.WriteLine(val1.Equals(val2));
            Console.ReadKey();
        }
    }
}