c# 排序

標籤：選擇排序   cat   try   names   reg   print   generic   mat   eve   

using System;using System.Collections.Generic;using System.Linq.Expressions;namespace ConsoleApplication{    struct Aaa    {        public int _red;        public int _green;        public int _blue;    }    internal class Program    {        public static void Main(string[] args)        {            var arr = new int[] {3, 4, 77, -1, 0, 9, 7, -999, 2, 4};            Array.Reverse(arr);//            Array.Sort(arr);//            BubbleSort(arr);            PrintArray(arr);        }        #region 工具方法        /// <summary>        /// 選擇排序        /// </summary>        /// <param name="arr"></param>        private static void Sort(int[] arr)        {            for (int i = 0; i < arr.Length - 1; i++)            {                for (int j = i + 1; j < arr.Length; j++)                {                    if (arr[i] > arr[j])                    {                        Swap(ref arr[i], ref arr[j]);                    }                }            }        }        /// <summary>        /// 冒泡排序        /// </summary>        /// <param name="arr"></param>        private static void BubbleSort(int[] arr)        {            for (int i = 0; i < arr.Length - 1; i++)            {                for (int j = 0; j < arr.Length-1-i; j++)                {                    if (arr[j] > arr[j+1])                    {                        Swap(ref arr[j], ref arr[j+1]);                    }                }            }        }        /// <summary>        ///交換兩個值        /// </summary>        /// <param name="a"></param>        /// <param name="b"></param>        /// <typeparam name="T"></typeparam>        private static void Swap<T>(ref T a, ref T b)        {            T t = a;            a = b;            b = t;        }        private static void PrintArray<T>(T[] arr)        {            string str = typeof(T) + "[";            if (arr.Length != 0)            {                for (var i = 0; i < arr.Length - 1; i++)                {                    str += arr[i] + ", ";                }                str += arr[arr.Length - 1];            }            str += "]";            JPrint(str);        }        public static void JPrint(string obj, params object[] arg)        {            Console.WriteLine(obj, arg);        }        public static void JPrint(object obj)        {            Console.WriteLine(obj);        }        /// <summary>        /// 獲得一個int類型的值        /// </summary>        /// <returns></returns>        public static int GetInt()        {            int i;            while (true)            {                try                {                    i = Convert.ToInt32(Console.ReadLine());                    break;                }                catch (FormatException e)                {                    Console.WriteLine(e.Message);                }            }            return i;        }        public static string GetString()        {            return Console.ReadLine();        }        public static double GetDouble()        {            double i;            while (true)            {                try                {                    i = Convert.ToDouble(Console.ReadLine());                    break;                }//            catch                catch (FormatException e)                {                    Console.WriteLine(e.Message);                }            }            return i;        }        #endregion    }}

 

c# 排序