用C语言做出来的车票管理系统

#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include<time.h>
#include<windows.h>
#include<conio.h>
#define N 20
typedef struct cl
{
char num[10];
char hour[3];
char min[3];
char from[10];
char to[10];
float hours;
int max;
int now;
}CLASS;
int class_num=0;
CLASS records[N];
void NewMessage();
void ShowTable1();
void ShowTable2(int i);
void Display();
void add();
void save();
void load();
void gotoxy(int i,int j);
void search();
void change();

void quit();
void Ticketorder();
void Ticketdelete();
int menu_select();
int whether(int);
void  find(char s1[],char s2[]);
void deletemessage();
int findnum(char s1[]);
void get(int,int);
char *menu[]={"***************MENU***************","1. 录入班次","2. 显示所有班次","3. 查询班次",
"4. 增加班次","5. 售票","6. 退票","7. 修改班次","8. 删除班次","9. 退出"};
/***************************************主函数*****************************************************/
void main()
{

system("cls");
for(;;)
{
switch(menu_select())
{
case 1: NewMessage();break;
case 2: Display();break;
case 3: search();break;
case 4: add();break;
case 5: Ticketorder();break;
case 6: Ticketdelete();break;
case 7: change();break;
case 8: deletemessage();break;
case 9: quit();break;
}