结构和类的区别

最新推荐文章于 2018-05-28 20:01:51 发布

原创最新推荐文章于 2018-05-28 20:01:51 发布 · 371 阅读

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本文探讨了C#中结构体和类的区别与应用，通过实例展示了它们在实现特定功能时的差异，重点说明了它们作为数据结构的值类型特性，以及在方法调用时对原始数据的影响。

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

namespace ConsoleApplication7
{
    class Program
    {
        static void Main(string[] args)
        {
            PointStruct structPoint = new PointStruct(10,10);

            Console.WriteLine("Initial struct values ar" + structPoint.x + "," + structPoint.y);
            ModifyStructPoint(structPoint);//这里传递的其实只是一个结构的副本，并不会改变我原有的结构值，他是数据结构的值类型，所以修改的只是副本
            Console.WriteLine("After ModifyStructPoint,struct values are" + structPoint.x + "," + structPoint.y);
            Console.WriteLine();

            PointClass classPoint = new PointClass(10, 10);
            Console.WriteLine("Initial Class values ar" + classPoint.x + "," + classPoint.y);
            ModifyClassPoint(classPoint);
            Console.WriteLine("After ModifyStructPoint,Class values are" + classPoint.x + "," + classPoint.y);
            Console.WriteLine();

        }

        static void ModifyStructPoint(PointStruct newStruct)
        {
            newStruct.x = 20;
            newStruct.y = 20;
            Console.WriteLine("My ModifyStructPoint");
            Console.WriteLine("Modified values are" + newStruct.x + "," + newStruct.y);
        }

        static void ModifyClassPoint(PointClass newClass)
        {
            newClass.x = 20;
            newClass.y = 20;
            Console.WriteLine("My ModifyClassPoint");
            Console.WriteLine("Modified values are" + newClass.x + "," + newClass.y);
        }
    }

    struct PointStruct
    {
        public int x;
        public int y;
        public PointStruct(int x, int y)
        {
            this.x = x;
            this.y = y;
        }
    }

    class PointClass
    {
        public int x;
        public int y;
        public PointClass(int x, int y)
        {
            this.x = x;
            this.y = y;
        }
    }
}

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