大数运算类(支持大数的加减乘除和赋值运算)



* 1. 实现原理： *

* 任何一个数都可以表示成指数形式，如下所示： *

* N=nEe (0=<n的绝对值<=1,e为10的指数幂) *

*　　例如100可以表示成1E2,1001可以表示成1.01E3 *

* 类 CBigNumber的成员number为上述的n，exponent为上述的e *

* 2. 如何使用这个类: *

* 你可以把CBigNumber的头文件和实现函数加入你的工程，然后定义 *

* 该类的实例，就可以对这些实例进行加减乘除了(详见示例程序)

-Large numbers computing class (to support large numbers of addition and subtraction, multiplication and division and assignment operator)



* 1. Principle:*

* Any number can be expressed as the exponential form, as follows:*

* N = nEe (0 = <n the absolute value of <= 1, the e index a power of 10)*

* For example, 100 can be expressed as 1E2, 1001 can be expressed as 1.01E3*

A member of the* CBigNumber class number for the above n, the exponent for the above e*

* How to use this class:*

* You can CBigNumber the header files and function to your project, and then define*

* Instance of the class, these instances subtraction multiplication addition to (see the sample program)