int main(){ char lower_alpha[27] = {'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z'}; char upper_alpha[27] = {'A','B','C','D','E','F','G','H','I','J','K','L...
本题要求编写程序，将英⽂字母替换加密。为了防⽌信息被别⼈轻易窃取，需要把电码明⽂通过加密⽅式变换成为密⽂。变换规则是：将明⽂中的所有英⽂字母替换为字母表中的后⼀个字母，同时将⼩写字母转换为⼤写字母，⼤写字母转换为⼩写字母。例如，字母a->B、b- >C、…、z->A、A->b、...