数组-冒泡排列

         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); 
            }