程序代码：

/* Note:Your choice is C IDE */
#include "stdio.h"
unsigned char tt,key;
void (*kfp)();
void menuf1()
{   printf("(选项1) 被选中\n\n\n");
    printf("选项2\n");
    printf("nop\n\n");}
void menuf2()
{   printf("选项1 \n\n\n");
    printf("(选项2)  被选中\n");
    printf("nop\n\n");}
void menuf3()
{   
    printf("\n\n\n执行动作2\n\n");
    }
void menuf4()
{  
    printf("\n\n\n执行动作1\n\n");
    }

typedef struct 
{  unsigned char  biaohao;
    unsigned char  up;    //输入1时对应up选择的标号
    unsigned char  down;  //输入2时对应down选择的标号
    unsigned char  ok;    //输入3时对应ok选择的标号
    unsigned char  back;  //返回主菜单
    void (*fun)();

    } Menustruct;

Menustruct Menu[4]={
    {0,1,1,3,0,*menuf1},{1,0,0,2,0,*menuf2},{2,0,0,0,0,*menuf3},{2,0,0,0,0,*menuf4}
        };
unsigned char tt;


void main()
{key=Menu[0].biaohao;     //初始化显示
kfp=Menu[key].fun;
  (*kfp)();

    while(1){
scanf("%d",&tt);        //输入1到4
switch(tt){
case 1: key=Menu[key].up; break;
case 2: key=Menu[key].down; break;
case 3: key=Menu[key].ok;   break;
case 4: key=Menu[key].back; break;
return ;
break;

 
}

kfp=Menu[key].fun;

  (*kfp)();
}}