本程序的编写思路是，把所有输入的数字当作字符串进行处理，进行强制转换成整形数据，然后模仿笔算方法，对整形数据进行处理，最后得到的数据，再次转换成字符串类型，并存储输出。本程序运行速度快、功能强，是作者于完成应用密码学课程设计时编写而成的，经反复测试无误。-The procedures for the preparation ideas, the number of all input as string processing, cast into plastic data, and then imitate the written calculation methods, on the shaping of data processing, the resulting data, once again converted to a string type, andstore the output.This program running speed, function, is written in the course design of the completion of the application password, after repeated testing is correct.