该源代码利用计算机模拟乘法竖式 计算阶乘

将每位数子保存在用new分配的一长字符数组里 在本人的机子上可计算30000!的精确值 用时近60秒-the source code used a computer simulation multiplication calculation factorial shaft will be preserved for each digit used in the distribution of a new long arrays of characters in my machine on computable 30,000! The precise value of time spent nearly 60 seconds