函数 20140829

        static int Max(int a, int b)//a，b是形参
        {
            if (a > b)
            {
                return a;
            }
            else
            {
                return b;
            }
        }
        static void Main111(string[] args)
        {
            int x = 5, y = 10, z = 7, m = 15, n = 13;

            int c = Max(Max(Max(Max(x, y), z), m), n);

            Console.WriteLine("最大值为：{0}", c);//x，y实参