//下列函数是主菜单功能的提示界面，其功能是说明主菜单中选项
int menu_select()
{
int c;
// system("cls");
printf("\n\t\t1.插入\n");
printf("\t\t2.删除\n");
printf("\t\t3.显示\n");
printf("\t\t4.查找\n");
printf("\t\t5.替换\n");
printf("\t\t6.移动\n");
printf("\t\t7.复制\n");
printf("\t\t8.文件存盘\n");
printf("\t\t9.装入文件\n");
printf("\t\t10.清空文件\n");
printf("\t\t0.退出\n");
do
{
printf("\n\n\t\t请按数字选择：");
scanf("%d", &c);
}
while (!(c >= 0 && c <= 10));
return (c);
}
