你可以参考一下下面：
#include<stdio.h>
#include<process.h>
#include<conio.h>
#include<stdlib.h>
#define maxim 65537
#define fuyi 65536
#define one 65536
#define round 8
unsigned int inv(unsigned int xin);
unsigned int mul(unsigned int a,unsigned int b);
void cip(unsigned int IN[4],unsigned int OUT[4],unsigned int Z[7][10]);
void key(unsigned int uskey[9],unsigned int Z[7][10]);
void de_key(unsigned int Z[7][10],unsigned int DK[7][10]);
void main()
