基础：继承之Object类型的int 重点看CompareTo

static void ObjectFunctionality() {
           int a = 12;
           Console.WriteLine("=> System.Object Functionality:");
           Console.WriteLine("12.GetHashCode()={0}",a.GetHashCode());
           Console.WriteLine("12.Equals(23)={0}",a.Equals(23));
           Console.WriteLine("12.GetType()={0}",a.GetType());
           Console.WriteLine("12.GetTypeCode()={0}",a.GetTypeCode());
           Console.WriteLine("12.ToString()={0}",a.ToString());
           Console.WriteLine("12.CompareTo(11)={0}",a.CompareTo(11));
           Console.WriteLine("12.CompareTo(23)={0}", a.CompareTo(23));
           Console.WriteLine("12.CompareTo(12)={0}", a.CompareTo(12));
       }

    结果：

         

数值数据类型的成员：

   static void DataTypeFunctionality() {
            Console.WriteLine("Max of int:{0}",int.MaxValue);
            Console.WriteLine("Min of int:{0}",int.MinValue);
            Console.WriteLine("Max of double:{0}",double.MaxValue);
            Console.WriteLine("Min of double:{0}",double.MinValue);
            Console.WriteLine("double.PositiveInfinity,double的正无穷大:{0}",double.PositiveInfinity);
            Console.WriteLine("double的负无穷:{0}",double.NegativeInfinity);
            Console.WriteLine("大于零的最大double的值",double.Epsilon);

        }

结果：