c#中的4种排序方法

using System;
class ArraySort
{
public static void Main()
{
    int[] d = {10,15,21,43,17,98,2,74,63,10};
    
    long begintime = System.DateTime.Now.Second*1000+System.DateTime.Now.Millisecond;
    Console.WriteLine("开始时间"+begintime);
    //Sort(d);//冒泡 从大到小
    //SortChoice(d); //选择  从小到大
    //SortInsert(d); //插入 从大到小
    SortShell(d); //希尔  从小到大
   long endtime = System.DateTime.Now.Second*1000+System.DateTime.Now.Millisecond;
   Console.WriteLine("结束时间"+endtime);
   Console.WriteLine("间隔时间"+(endtime-begintime));
   Console.WriteLine("--------------");
   
    foreach(int i in d)
   Console.Write("{0}, ", i);   
}

 public static void Sort(int[] list)
 {
     int j,temp;
     j= 1;
     while((j<list.Length))
    {
       for(int i=0;i<list.Length -j;i++)
       {