Master key, secondary key and primary key are all can be used to encrypt file or communication.

为了防止信息被别人轻易窃取，需要把电码明文通过加密的方式变换成密文。变换规则如下：小写字母z变成a，其他字母变换成该字母ASCII码顺序后一位字母，比如o变换成p.要求：补充encrypt()函数 #include #include #define MAXLINE 100 void encrypt(char *); /*密码变换问题*/ int main() { char line[MAXLINE]; printf("Input the string:"); gets(line); encrypt(line); printf("After being encrypted: "); puts(line); return 0; } void encrypt(char*s) { }