c语言 飞机订票系统设计 你会吗？我不会 望求解
要求本课题要求用C语言编写一个航班订票管理系统，该系统用于机场航班订票。假设某机场有若干次，每次有N个座位的飞机航班。通过该系统来实现机票的订购问题。每个航班的信息包括：航班号（航班号不重复）、目的地址、起飞时间、N个座位的座次信息，每个座位信息包括座次号、座次订出与否标记、订座者姓名。系统要求能够实现以下功能：
1、    录入：出入航班信息；
2、    显示：按照航班号顺序输出所有航班信息；
3、    查询：根据目的地址或者起飞时间查询航班信息，包括：航班号、目的地址、起飞时间、空座数量；
4、    订票预约：客户可以预订某个航班某个座位；
5、    预约取消：客户取消某个预约；
6、    可以适当扩充系统功能。
要求：
1、    系统以菜单方式工作，可以完成多项功能，由用户选择；
2、    各种操作结果在界面有显示；
3、    有一定的错误提示功能，保证数据合法性，输入出错有提示。
4、    界面设计要求友好美观，操作方便，有足够的提示信息。
5、    将所有信息保存在外部文件上
6、采用链表数据结构。

版主真的感谢你啊！我的QQ1156098236   不是我不想做，是我做了很多但就调试不出来！

楼主，程序还能帮忙吗？

楼主我这个程序有问题  可以帮忙看一下吗？与题目要求好像还不完全符合
#include<stdio.h>
#include<stdlib.h>

 #include<string.h>

#define OK 1
#define ERROR 0

typedef struct flightnode{      /*定义航班信息结点*/
char air_num[10];
char start_time[15];
char end_time[15];
char end_place[30];
int  total;
int  left;
int price;
struct flightnode *next;
}flightnode;

typedef struct passengernode{  /*定义乘客资料结点*/
char name[20];
char ID_num[20];
char air_num[20];
int  seat_num;
struct passengernode *next;
}passengernode;

flightnode *head_flight();   /*生成航班信息的头结点*/
passengernode *head_passenger();  /*生成乘客资料的头结点*/
int CreatFlight(flightnode **l);  /*生成航班信息链表*/
int CreatPassenger(passengernode **l); /*生成乘客资料链表*/
int InsertFlight(flightnode **p,char *air_num,char *start_time,char *end_place,int total,int left,int price); /*插入航班信息的结点*/
int InsertPassenger(passengernode **p,char *name,char *ID_num,char *air_num,int seat_num); /*插入乘客资料的结点*/
flightnode *modefy_airline(flightnode *l,char *air_num); /*修改航班信息的函数*/
int BookTicket(flightnode*a,char *air_num,passengernode *c,char *name,char *ID_num); /*订票函数*/
int CancelTicket(passengernode *c,flightnode*l,char *name,char *ID_num); /*退票函数*/
int SearchFlight(flightnode*head); /*查询航班信息函数*/
int SearchPassenger(passengernode *head); /*查询乘客信息函数*/

void main()  /*主函数*/
{
int p=2;    /*p==1时进入主菜单，p==0时退出系统*/
passengernode *cus=head_passenger();
flightnode *air=head_flight();
char name[20],air_num[20],ID_num[30],mima[20],ch;
char t[20]="zhengjianze";  /*管理员密码*/
void clrscr();
CreatFlight(&air);
CreatPassenger(&cus);

while(p==2)
{
printf("\n            welcome to the  airline system!\n\n  please choose the serves below and press the number:\n\n");
printf("  ================================================================\n\n");
printf("                   1  ->订票           \n");
printf("                   2  -> 退票      \n");
printf("                   3  ->查询         \n");
printf("                   4  ->退出系统           \n\n");
printf("  ================================================================\n");

switch(ch=getchar()){
case '1':{printf("\n     *-------------Booking Ticket-------------*\n"); /*进入订票功能*/
printf("Please input a airline number and press enter for OK:");
scanf("%s",air_num);
printf("Please input your name and press enter for OK:");
scanf("%s",name);
printf("Please input your ID number and press enter for OK:");
scanf("%s",ID_num);
BookTicket(air,air_num,cus,name,ID_num);getchar();}
;break;

case '2':{printf(" *-----------------------Canceling Ticket--------------------*\n"); /*进入退票功能*/
printf("Please input the cancel name for booking ticket:");
scanf("%s",name);printf("Please input the ID for booking ticket:");scanf("%s",ID_num);
CancelTicket(cus,air,name,ID_num);
};break;

case '3':{printf("*---------------Search Information---------------------*\n"); /*进入信息查询功能*/
          printf("           1     -> flight information \n" );     
          printf("           2     -> passenger information\n ");
          printf("          other -> exit                 \n");  
          printf("*------------------------------------------------------*\n");
 if((ch=getchar())=='1')    /*航班信息查询*/
{printf("*------------------ flight information -----------------*\n");
SearchFlight(air);}
else if(ch=='2'){   /*乘客资料查询*/
printf("\n please input the key:");scanf("%s",mima);  /*输入管理员密码*/
if(strcmp(mima,t)==0){printf("\n*---------------passenger information ---------------*\n\n");
SearchPassenger(cus);}
else printf("sorry,the key is wrong");getchar();}}break;

case '4':{getchar();  /*退出系统*/
p=0;}break;
}
}}



flightnode *head_flight()
{
flightnode *a;
a=(flightnode *)malloc(sizeof(flightnode));
if(a==NULL)
a->next=NULL;
return a;
}

passengernode *head_passenger()
{
passengernode *c;
c=(passengernode*)malloc(sizeof(passengernode));
if(c==NULL)
c->next=NULL;
return c;
}

int CreatFlight(flightnode **l)
{
flightnode *p=*l;
int i=0;
char *air_num[3]={"flight01","flight02","flight03"};
char *start_time[3]={" 08:00"," 12:00"," 16:30"};
char *end_place[3]={"Guangzhou","Shenzhen","Shantou"};   /*初始化航班信息*/
int total[3]={100,100,100};
int price[3]={300,200,250};
int left[3]={23,54,76};   
for(i=0;i<3;i++)
InsertFlight(&p,air_num[i],start_time[i],end_place[i],total[i],left[i],price[i]);  /*插入航班信息*/
return OK;
}


int CreatPassenger(passengernode **l)
{
passengernode *p=*l;
int i=0;
char *name[3]={"liming","Ximing","Chongliang"};
char *ID_num[3]={"3105006052","3105006054","3105006051"};   /*初始化乘客资料*/
char *air_num[3]={"flight01","flight02","flight03"};
int seat_num[3]={12,5,8};
for(i=0;i<3;i++)
InsertPassenger(&p,name[i],ID_num[i],air_num[i],seat_num[i]);  /*插入乘客资料*/
return OK;
}


int InsertFlight(flightnode **p,char *air_num,char *start_time,char *end_place,int total,int left,int price)
{flightnode *q;
q=(flightnode*)malloc(sizeof(flightnode));
strcpy(q->air_num,air_num);
strcpy(q->start_time,start_time);
strcpy(q->end_place,end_place);q->total=total;
q->left=left;
q->price=price;
q->next=NULL;
(*p)->next=q;
(*p)=(*p)->next;  /*航班信息链的尾插法*/
return OK;
}

int InsertPassenger(passengernode **p,char *name,char *ID_num,char *air_num,int seat_num)
{passengernode *q;
q=(passengernode*)malloc(sizeof(passengernode));
strcpy(q->name,name);
strcpy(q->ID_num,ID_num);
strcpy(q->air_num,air_num);
q->seat_num=seat_num;
q->next=NULL;
(*p)->next=q;
(*p)=(*p)->next;  /*乘客资料链表的尾插法*/
return OK;
}

flightnode *modefy_airline(flightnode *l,char *air_num)
{
flightnode *p;
p=l->next;
for(;p!=NULL;p=p->next)
{
if(strcmp(air_num,p->air_num)==0)
{
p->left++;
return l;
}
printf("NO the airline!");
return 0;
}}

int  BookTicket(flightnode *a,char *air_num,passengernode *c,char *name,char *ID_num)
{flightnode *p=a;
passengernode *q=c->next;
p=a->next;
for(;q->next!=NULL;q=q->next);
for(;p!=NULL;p=p->next)
{if(strcmp(p->air_num,air_num)==0){
if(p->left>0)
{printf("      \nSuccessful for Booking ticket.\n\n    Your flight:  %s\n   Your seat number :  %d ",p->air_num,(p->total-p->left+1));printf("\n     *-----------------------------------------*");
InsertPassenger(&q,name,ID_num,air_num,p->total-p->left+1);
p->left--; return OK;}
else
{printf("seat is full");return 0;}
}/*if(strcmp)*/ }
printf("Sorry,there isn't the plane,please check the airline number!");printf("\n     *-----------------------------------------*");

}


int CancelTicket(passengernode *c,flightnode *l,char *name,char *ID_num)
{
passengernode *p,*pr;
char air_num[20];
pr=c;
p=pr->next;
while(p!=NULL)
{
if(strcmp(p->name,name)==0&&strcmp(p->ID_num,ID_num)==0)
{
strcpy(air_num,p->air_num);
l=modefy_airline(l,air_num);
pr->next=p->next;
p=pr->next;
printf("successful for canceling ticket.");
printf("\n *-----------------------------------------------------------------*");
return OK;
}
pr=pr->next;
p=pr->next;
}
printf("Sorry,there isn't the customer!");
printf("\n     *--------------------------------------------------------*");
return ERROR;
}


int SearchFlight(flightnode *head)
{flightnode *p=head->next;
printf(" Flight    Start_time   Arrival_place  Price  Total  Left_seat\n\n");
for(;p!=NULL;p=p->next)
{
printf(" %s    %-10s   %-9s   %-7d%-6d %-6d\n",p->air_num,p->start_time,p->end_place,p->price,p->total,p->left);printf("\n");
}printf(" *----------------------------------------------------------*\n\n");
return OK;
}


int SearchPassenger(passengernode *head)
{struct passengernode *q=head->next;
printf("  Name       ID         Flight     Seat_number\n\n");
for(;q!=NULL;q=q->next)
{
printf("%-12s %-8s %-5s      %d\n",q->name,q->ID_num,q->air_num,q->seat_num);printf("\n");
}
printf("\n *----------------------------------------------------------*");
return OK;}