int n;
while(1){
printf(“\n”);
printf(”    \t–主菜单–\n\n”);
printf(”    \t                   1-                                                  \n\n”);
printf(”    \t                   2-                                                  \n\n”);
printf(”    \t                   3-                                                  \n\n”);
printf(”    \t                   4-                                                  \n\n”);
printf(”    \t–\n\n”);
printf(“please choose the number that you need:”);
scanf(“%d”,&n);
switch(n){
case 1:break;
case 2:break;
case 3:break;
case 4:break;
default :printf(“无%d选项,请重选\n”,n);
}
}
就是例如可能不止4个选项，可以不确定的增加或减少选项，这就导致本人不知道怎么处理选项了，该怎么做这个界面呢，，求高手们教