program.cs

C#2.0宝典源码,C#经典书籍,很多例子

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

namespace Example14_1 {
    class Program {
        static void Main(string[] args) {
            MyList<int> myList = new MyList<int>();

            for (int x = 0; x < 5; x++) {
                myList.Add(x);
            }

            foreach (int i in myList) {
                System.Console.WriteLine(i);
            }

            Console.ReadLine();
        }
    }

    /// <summary>
    /// 泛型类MyList
    /// </summary>
    /// <typeparam name="T">类型参数T</typeparam>
    public class MyList<T> {
        /// <summary>
        /// 内部类，表示MyList中的元素
        /// </summary>
        private class MyItem {
            /// <summary>
            /// 构造函数
            /// </summary>
            /// <param name="t">参数t，表示元素</param>
            public MyItem(T t) {
                next = null;
                data = t;
            }

            /// <summary>
            /// 字段，表示下一个元素
            /// </summary>
            private MyItem next;

            /// <summary>
            /// 属性，表示下一个元素
            /// </summary>
            public MyItem Next {
                get {
                    return next;
                }
                set {
                    next = value;
                }
            }

            /// <summary>
            /// 字段，表示元素
            /// </summary>
            private T data;

            /// <summary>
            /// 属性，表示元素
            /// </summary>
            public T Data {
                get {
                    return data;
                }
                set {
                    data = value;
                }
            }
        }

        /// <summary>
        /// 字段，表示MyList中的元素
        /// </summary>
        private MyItem myItem;

        /// <summary>
        /// MyList的构造函数
        /// </summary>
        public MyList() {
            myItem = null;
        }

        /// <summary>
        /// Add方法，用于向MyList中添加元素
        /// </summary>
        /// <param name="t">要添加的元素</param>
        public void Add(T t) {
            MyItem n = new MyItem(t);
            n.Next = myItem;
            myItem = n;
        }

        /// <summary>
        /// 迭代器
        /// </summary>
        /// <returns>元素</returns>
        public IEnumerator<T> GetEnumerator() {
            MyItem currentItem = myItem;

            while (currentItem != null) {
                yield return currentItem.Data;
                currentItem = currentItem.Next;
            }
        }
    }
}