数据结构中关于加密解密的上机实验作业，本人亲做-Data structure on the encryption and decryption operations on the test machine, I do pro-

C语言编写双向循环链表26字母维吉尼亚加密解密，用codeblocks测试通过，见小甲鱼数据结构视频第22集。-C language bi-circular list 26 letters Virginia encryption and decryption, using codeblocks tested, see a small turtle data structure of the video the first 22 episodes.