第2张 C#中的泛型

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.Serialization.Formatters.Binary;
using System.IO;
using System.Text.RegularExpressions;

namespace _.net之美
{
    class Program
    {
        static void Main(string[] args)
        {
            Book[] books=new Book[2];
            Book book1 = new Book(10, "book1");
            Book book2 = new Book(20, "book2");
            books[0] = book1;
            books[1] = book2;
            SortHelper<Book> sortHelper = new SortHelper<Book>();
            sortHelper.BubbleSort(books);
            foreach (Book book in books)
            {
                Console.WriteLine("{0},{1}", book.Price, book.Title);
            }
            Console.Read();
        }
    }

    public class SortHelper<T> where T : IComparable
    {
        public void BubbleSort(T[] array)
        {
            int length = array.Length;
            for (int i = 0; i < length-1; i++)
            {
                for (int j = 0; j < length - 1 - j; j++)
                {
                    if (array[j].CompareTo(array[j + 1]) > 0)
                    {
                        T tmp = array[j];
                        array[j] = array[j + 1];
                        array[j + 1] = tmp;
                    }
                }
            }
        }
    }

    public class Book:IComparable
    {
        decimal price;
        string title;
        public Book() { }
        public Book(decimal price, string title)
        {
            this.price = price;
            this.title = title;
        }
        public decimal Price
        {
            get { return this.price; }
        }

        public string Title
        {
            get { return this.title; }
        }

        public int CompareTo(object obj)
        {
            Book book = (Book)obj;
            return this.Price.CompareTo(book.Price);
        }
    }
}