#include<stdio.h> int main() { char key[101] = { '0' }; char sec[101] = { '0' }; while (scanf("%s\n%s", &key, &sec) != EOF) { int len = strlen(key); //密钥长度 int seclen = strlen(sec); //密码长度 int num[26] = { 0 }; //原26字母出现标志组-出现则标1 char newkey[26] = { '0' }; //加密字母表 int m...