static void Main(string[] args)        {            int[] a = new int[8] { 9, 13, 24, 38, 23, 2, 43, 46 };            for (int i = 1; i <= a.Length - 1; i++)            {                for (int j = 1; j <= a.Length - i; j++)                 {                    if (a[j - 1] < a[j])                     {                        int t = a[j - 1];                        a[j - 1]= a[j] ;                        a[j] = t;                                        }                                                }            }            for (int k=0; k<= a.Length - 1;k++ )            { Console.WriteLine("遍历数组"+a[k]);             }            Console.ReadKey();        }

　　

foreach(int k in a)            { Console.WriteLine("遍历数组"+k);             }