关于找最大值的问题

 
        private DateTime CompareDate()
        {
            DateTime a = DateTime.Parse("2011-02-04");
            DateTime b = DateTime.Parse("2010-03-04");
            DateTime c = DateTime.Parse("2009-12-04");
            DateTime d = DateTime.Parse("2011-12-04");
            DateTime e = DateTime.Parse("2011-8-04");

            DateTime maxDate =new DateTime();
            DateTime[] dates = new DateTime[] {a,b,c,d,e};
            /*
            以下为重点代码
            */
            int max = 0;
            for (int i = 0; i < dates.Length; i++)
            {
                if (dates[i] > dates[max])
                {
                    max = i;
                }
            }
            maxDate = dates[max];
            return maxDate;
        }