委托的一个应用---冒泡

 参考《C#高级编程》

直接上代码，代码比较简单      

    class Program
    {
        private delegate string GetAString();
        static void Main(string[] args)
        {
            
            int[] a = { 0, 5, 6, 2, 1 };
            BubbleSorter.Sort(a, BubbleSorter.Compa);
            foreach (var item in a)
            {
                Console.Write(item);
            }
            Console.ReadLine();
        }

        public static void SortA(int[] sortArray)
        {
            bool swapped = true;
            do
            {
                swapped = false;
                for (int i = 0; i < sortArray.Length - 1; i++)
                {
                    if (sortArray[i] < sortArray[i + 1])
                    {
                        int temp = sortArray[i];
                        sortArray[i] = sortArray[i + 1];
                        sortArray[i + 1] = temp;
                        swapped = true;
                    }
                }
            }
            while (swapped);
        }
    }

    class BubbleSorter
    {
        static public void Sort<T>(IList<T> sortArray, Func<T, T, bool> comparison)
        {
            bool swapped = true;
            do
            {
                swapped = false;
                for (int i = 0; i < sortArray.Count - 1; i++)
                {
                    if (comparison(sortArray[i + 1], sortArray[i]))
                    {
                        T temp = sortArray[i];
                        sortArray[i] = sortArray[i + 1];
                        sortArray[i + 1] = temp;
                        swapped = true;
                    }
                }
            } while (swapped);
        }

        public static bool Compa(int i, int j)
        {
            return i < j;
        }
    }