大数类，重载了各类操作符，可以直接使用-fate categories, a variety of heavy-duty operator can be used directly

该程序重载了C++基本运算符号 能提供对最大10000！进行计算 满足一部分大整数计算的要求 -The procedure has been overloaded C++ Basic arithmetic symbols to provide the maximum 10000! Part of the calculation to meet the requirements of large integer calcula