/// <summary>
        /// 获取KnownColor类下的所有静态颜色
        /// </summary>
        /// <returns></returns>
        public static IList<Color> GetAllColors()
        {
            var colors = Enum.GetNames(typeof(KnownColor));
            return colors.Select(s => Color.FromName(s)).ToList();

        }

        /// <summary>
        /// 直接KnownColor将颜色输出打控制台--前景色
        /// </summary>
        /// <param name="colors"></param>
        public static void WriteRGB(IList<Color> colors)
        {
            foreach (var item in colors)
            {               
                Console.WriteLine(string.Format("{0} hex:#{1:X2}{2:X2}{3:X2}", item.Name, item.R, item.G, item.B)); ;
            }
        }