说明：  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))