c#菜B学习之路3

刚刚练习了冒泡算法，趁热打铁，练习鸡尾酒算法。Cocktail！

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace 鸡尾酒排序算法
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] arr1 = new int[] { 2, 5, 3, 18, 23, 12, 13, 16, 11 };
            Cocktail(arr1);
            for (int i = 0; i < arr1.Length; i++)
            {
                Console.Write(arr1[i] + " ");
            }
            Console.Read();
        }
        static void change(ref int left, ref int right)//change方法来作值交换
        {
            int temp;
            temp = left;
            left = right;
            right = temp;
        }
        static void Cocktail(int[] arr)//鸡尾酒排序
        {
            int up = arr.Length - 1;//设置排序上限
            int low = 0;//设置排序下限
            while (low < up)
            {
                for (int i = low; i < up; i++)
                {
                    if (arr[i] <= arr[i + 1])
                    {
                        continue;
                    }
                    else
                    {
                        change(ref arr[i], ref arr[i + 1]);
                    }
                }
                up--;
                for (int j = up; j > low; j--)
                {
                    if (arr[j] >= arr[j - 1])
                    {
                        continue;
                    }
                    else
                    {
                        change(ref arr[j], ref arr[j - 1]);
                    }
                    low++;
                }
            }
        }
    }
}