此代码为两个大整数的乘法运算，支持无限多位数的乘法，只要硬件资源允许。-this code for the two large integer multiplication and support an infinite number multiplication of the median, as long as the hardware resources allow.

大整数乘法的算法实现，可以运行，希望可以帮到大家-Large integer multiplication algorithm, you can run, I hope you can help