排序方法：去掉最高最低分求平均分 函数

法1

namespace 函数数组排序带出最大最小值及平均值
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] b=new int[]{9,1,5,3,7}; 
            int max = 0;  //设置两个变量用来接收最低值与最小值。
            int min = 0;
            int ave = 0; //设变一个变量来接收平均值。
            int[]a=  new Program().Array(b,out max,out min,out ave); 
            for (int i = 0; i < b.Length; i++)
            {
                Console.WriteLine( b[i]); 
            }
            Console.WriteLine("最大值"+max);
            Console.WriteLine("最小值"+min);
            Console.WriteLine("平均值"+ave);
            Console.ReadLine();
        }
        public int[] Array(int[]a,out int x,out int y,out int ave)  //跳出x,y和ave三个变量，返回int[]a变量。
        {
          
            int temp = 0;
            for (int i = 1; i <= a.Length; i++)
            {
                for (int j = 1; j <= a.Length-i; j++)
                {
                    if(a[j-1]<a[j])
                    {
                        temp = a[j - 1];
                        a[j - 1] = a[j];
                        a[j] = temp;
                    }
                }
            }  
            x = a[0]; //最大值
            y=a[a.Length-1]; //最小值
            int sum = 0;
            for (int i = 0; i < a.Length; i++)
            {
                
                sum = sum + a[i];
            }
            ave = sum / (a.Length);
            return a;
        }
    }
}

法2

namespace ConsoleApplication10
{
    class Program
    {    
        public double[] paixu(double[] a)
        {
            double temp;
            for (int i = 0; i < a.Length; i++)//位数循环 快速排序
            {
                for (int j = i; j < a.Length - 1; j++)//位数与后面的比较
                {
                    if (a[i] < a[j + 1])
                    {
                        temp = a[i];
                        a[i] = a[j + 1];
                        a[j + 1] = temp;
                    }
                }
            }
            return a;
        }
        static void Main(string[] args)
        {
            Console.BackgroundColor = ConsoleColor.White;
            Console.Clear();
            double[] a = new double[5];
            double sum = 0;
            for (int i = 0; i < a.Length; i++)
            {
                a[i] = Convert.ToInt32(Console.ReadLine());
                sum = sum + a[i];
                Console.ForegroundColor = ConsoleColor.Red;
                Console.WriteLine("第" + (i + 1) + "个评委的分数为" + a[i]);
            }
            Console.ForegroundColor = ConsoleColor.Red;
            Console.WriteLine("总分为"+sum);

            double[] b = new Program().paixu(a);
            for (int i = 0; i <a.Length; i++)
            {
                Console.WriteLine(a[i]);
            }
            Console.ForegroundColor = ConsoleColor.Red;
            Console.WriteLine("最高分" + a[0]);
            Console.WriteLine("最低分" + a[4]);
            double pj = (sum - a[0] - a[4])/(a.Length-2);
            Console.WriteLine("去掉一个最高分和最低分之后的平均最后得分为" + pj);  
            Console.ReadLine();
        }
    }
}