欢迎您访问程序员文章站本站旨在为大家提供分享程序员计算机编程知识!
您现在的位置是: 首页  >  IT编程

C#索引器简单实例代码

程序员文章站 2023-12-05 21:14:10
复制代码 代码如下:public class fruit {         string pea...

复制代码 代码如下:

public class fruit

{

        string peach = "a round juicy fruit that has a soft yellow or red skin and a large hard seed in the center, or the tree that this fruit grows on";

        string orange = "a round fruit that has a thick orange skin and is divided into parts inside";

        string banana = "a long curved tropical fruit with a yellow skin";

        string apple = "a hard round fruit that has red, light green, or yellow skin and is white inside ";

        public string this[string fruitname]

        {

            get

            {

                switch (fruitname)

                {

                    case "peach":

                        return peach;

                    case "orange":

                        return orange;

                    case "banana":

                        return banana;

                    case "apple":

                        return apple;

                    default:

                        throw new exception("wrong fruit name");

                }

            }

            set

            {

                switch (fruitname)

                {

                    case "peach":

                        peach = value;

                        break;

                    case "orange":

                        orange = value;

                        break;

                    case "banana":

                        banana = value;

                        break;

                    case "apple":

                        apple = value;

                        break;

                    default:

                        throw new exception("wrong fruit name");

                }

            }

        }

    }

    class program

    {

        static void main(string[] args)

        {

            fruit f = new fruit();

            //关联数组的方式访问get方法

            console.writeline(f["peach"]);

            //关联数组的方式访问set方法

            f["peach"] = "i like to eat peach.";

            console.writeline(f["peach"]);

            console.readline();

        }

    }