【c语言】航班订票系统

#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include<malloc.h>
#include<conio.h>          typedef struct flightnode         //定义飞机航班链表
{char flight_num[10];  char start_time[10];  char end_time[10];    char start_place[20]; char end_place[20];   float price;          float price_discount; int left;          int isFull;           struct flightnode *next;
}flightnode;typedef struct passengernode      //定义乘客链表
{char name[20];             char ID_num[20];           char flight_num[10];       int order_num;             int ticket_num;            struct passengernode *next;
}passengernode;               typedef struct passengerList      //乘客链表的头指针,尾指针
{passengernode *head;passengernode *rear;
}passengerList;void init_flight(flightnode *&h)  //初始化航班链表为空表 定义并引用h为头结点
{h = (flightnode *)malloc(sizeof(flightnode));            if(h==NULL) exit(0);          h->next = NULL;
}void init_passengerList(passengerList *&pList)                   //定义乘客链表为空链表
{pList = (passengerList *)malloc(sizeof(passengerList));pList->head = (passengernode *)malloc(sizeof(passengernode)); pList->rear = pList->head;                                           pList->rear->order_num = 0;                                       pList->head->next = NULL;
}void save_passenger(passengerList *PList)           //保存文件(以二进制形式保存 存到.dat文件中)   passenger.dat
{FILE* fp = fopen("passenger.dat","wb");if(fp == NULL)return;passengernode *temp = PList->head->next;        //temp指针指向链表的首节点while(temp!=NULL){fwrite(temp,sizeof(passengernode),1,fp);temp = temp->next;}fclose(fp);
}void load_passenger(passengerList *PList)           //把文件中的乘客信息导入到乘客链表中
{FILE* fp = fopen("passenger.dat","rb");if(fp == NULL)return;passengernode *q;int n;                                          //是否成功写入的标志量while(!feof(fp)){q = (passengernode *)malloc(sizeof(passengernode));n = fread(q,sizeof(passengernode),1,fp);if(n!=1)break;PList->rear->next=q;             //头插法PList->rear=q;}PList->rear->next = NULL;fclose(fp);
}void save_flight(flightnode *h)
{FILE* fp = fopen("flightList.dat","wb");if(fp == NULL)return;flightnode *temp = h->next;while(temp != NULL){fwrite(temp,sizeof(flightnode),1,fp);temp = temp->next;}fclose(fp);
}void load_flight(flightnode *&h)               //从文件中将信息导入到航班链表中
{flightnode *pt = h;FILE* fp = fopen("flightList.dat","rb");if(fp == NULL)return;flightnode *q;int n;while(!feof(fp)){q = (flightnode *)malloc(sizeof(flightnode));n = fread(q,sizeof(flightnode),1,fp);if(n!=1)break;pt->next = q;pt = q;}pt->next = NULL;fclose(fp);
}void insert_flight(flightnode *&h,char* flight_num,char* start_place,char* end_place,char *start_time,char* end_time,float price,float price_discount,int left,int isFull)
{flightnode *q;                                      //q指向新节点flightnode *p = h;                                  //p指向航班链表的头节点q = (flightnode *)malloc(sizeof(flightnode));strcpy(q->flight_num,flight_num);strcpy(q->start_place,start_place);strcpy(q->end_place,end_place);strcpy(q->start_time,start_time);strcpy(q->end_time,end_time);q->price = price;q->price_discount = price_discount;q->left = left;q->isFull = isFull;q->next = p->next;                                  //头插法p->next = q;                                    p = p->next;
}void insert_passengerList(flightnode *&h,passengerList *&PList,char *name,char *ID_num,char *flight_num,int ticket_num)
{flightnode *p = h->next;                         //p指向乘客链表的首节点for(; p!= NULL; p=p->next){if(strcmp(p->flight_num,flight_num) == 0){p->left = p->left - ticket_num;          //更新实时的剩余座位数if(p->left == 0){p->isFull = 1;}}}passengernode *q  = (passengernode *)malloc(sizeof(passengernode));   //新建q节点,存放新的客户信息strcpy(q->name, name); strcpy(q->ID_num, ID_num);strcpy(q->flight_num, flight_num);q->ticket_num = ticket_num;q->next = NULL;PList->rear->next = q;         //尾插法q->order_num = PList->rear->order_num+1;PList->rear = q;
}void add_flight(flightnode *&h)
{flightnode *p = h;char flight_num[10],start_time[10],end_time[10],start_place[20],end_place[20];int left,isFull,mark = 1;float price,price_discount;for(;p->next!=NULL;p=p->next){}     //p指针指向尾节点 尾插法while(mark == 1){printf("\t\t 请输入您需要增加的航班号: ");scanf("%s",flight_num);printf("\t\t 请输入出发地: ");scanf("%s",start_place);printf("\t\t 请输入目的地: ");scanf("%s",end_place);printf("\t\t 请输入出发时间: ");scanf("%s",start_time);printf("\t\t 请输入结束时间: ");scanf("%s",end_time);printf("\t\t 请输入航班价格: ");scanf("%f",&price);printf("\t\t 请输入是否有折扣信息(例:7折 输入0.7): ");scanf("%f",&price_discount);printf("\t\t 请输入剩余座位数: ");scanf("%d",&left);printf("\t\t 请输入是否满仓:(0表示没有满仓  1表示满仓) ");scanf("%d",&isFull);insert_flight(p,flight_num,start_place,end_place,start_time,end_time,price,price_discount,left,isFull);printf("\t\t 增加航班%s 成功！\n",flight_num);printf("\t\t 是否继续录入航班信息(1 表示继续录入;0 表示停止录入).\n");printf("\t\t 请输入: ");scanf("%d",&mark);}
}int flight_num_check(flightnode *h,char *flight_num)
{flightnode *p=h;              //p指针指向航班链表的首节点printf("%-8s%-12s%-12s%-10s%-10s%-8s%-8s%-8s%-10s\n","航班号","起飞城市","抵达城市","起飞时间","抵达时间","价格","折扣","空座数","是否满仓");    //提示输入信息格式for(;p!=NULL;p = p->next) {if(strcmp(p->flight_num,flight_num) == 0){printf("%-8s%-12s%-12s%-10s%-10s%-8.2f%-8.2f%-8d%-10d\n",p->flight_num, p->start_place, p->end_place, p->start_time,p->end_time, p->price, p->price_discount, p->left, p->isFull);  //找到航班号 进行输出return 1;}}printf("\t\t  抱歉，没有航班为%s 的航班信息!\n",flight_num);return 0;
}int place_check(flightnode *h,char *start_place,char *end_place)    //按照起始地点 结束地点查询
{flightnode *p = h;            //p指针 指向航班链表的首节点int mark = 0;printf("%-8s%-12s%-12s%-10s%-10s%-8s%-8s%-8s%-10s\n","航班号","起飞城市","抵达城市","起飞时间","抵达时间","价格","折扣","空座数","是否满仓");    //提示输入信息格式for(;p!=NULL;p = p->next){if(strcmp(p->start_place, start_place) == 0 && (strcmp(p->end_place, end_place) == 0)){printf("%-8s%-12s%-12s%-10s%-10s%-8.2f%-8.2f%-8d%-10d\n",p->flight_num, p->start_place, p->end_place, p->start_time,p->end_time, p->price, p->price_discount, p->left, p->isFull);    //相等 输出航班相关信息mark = 1;}}if(mark == 0){printf("\t\t 抱歉,没有从%s 到%s 的航班信息！\n",start_place,end_place);return 0;}return 1;
}void check_all_flight(flightnode *h)            //浏览所有航班
{flightnode *p = h;int mark = 0;printf("%-8s%-12s%-12s%-10s%-10s%-8s%-8s%-8s%-10s\n","航班号","起飞城市","抵达城市","起飞时间","抵达时间","价格","折扣","空座数","是否满仓");    //提示输入信息格式for(;p!=NULL; p=p->next){printf("%-8s%-12s%-12s%-10s%-10s%-8.2f%-8.2f%-8d%-10d\n",p->flight_num, p->start_place, p->end_place, p->start_time,p->end_time, p->price, p->price_discount, p->left, p->isFull);    //输出相关信息mark = 1;}if(mark == 0)printf("\t\t  航班信息为空!\n");
}void flight_check(flightnode *h)
{flightnode *p=h->next;                      //p指针指向航班链表的首节点char flight_num[10],start_place[20],end_place[20];char a; printf("\t\t 请选择航班查询方式：\n");printf("\t\t 1表示按航班号进行查询;\n");printf("\t\t 2表示按起飞到达城市进行查询;\n");printf("\t\t 3表示浏览全部航班信息.\n\t\t 请选择输入：");a = getch();printf("%c\n",a);if(a ==  '1') {printf("\t\t 请输入航班号:");scanf("%s",flight_num);flight_num_check(p,flight_num);}else if(a == '2'){printf("\t\t 请输入起飞城市:");scanf("%s",start_place);printf("\t\t 请输入抵达城市:");scanf("%s",end_place);place_check(p,start_place,end_place);}else if(a == '3'){check_all_flight(p);}elsereturn;
} int find_same_flight(flightnode *h,char *flight_num)  //如果没有你选择的航班满了的话 提示的可选择的其他航班
{flightnode *t = h->next,*p = h->next;            //t指针指向航班链表的首节点 p指针指向乘客链表的首节点int mark = 0;printf("%-8s%-12s%-12s%-10s%-10s%-8s%-8s%-8s%-10s\n","航班号","起飞城市","抵达城市","起飞时间","抵达时间","价格","折扣","空座数","是否满仓");        //提示输入信息格式while(t != NULL && strcmp(t->flight_num,flight_num)!=0) t=t->next;     //遍历到了最后一个节点 或者查找到第一个目标节点while(p != NULL){if((strcmp(t->start_place,p->start_place) == 0) && (strcmp(t->end_place,p->end_place) == 0) && (strcmp(t->flight_num,p->flight_num)!=0))   //出发点和目的地相同 并且和那个满的航班号还不相同{printf("%-8s%-12s%-12s%-10s%-10s%-8.2f%-8.2f%-8d%-10d\n",p->flight_num, p->start_place, p->end_place, p->start_time,p->end_time, p->price, p->price_discount, p->left, p->isFull);   //输出所有可选航班mark = 1;}p = p->next;}if(mark == 0)             //没有其他航班的时候该怎么做{printf("\t\t 抱歉, 没有可选航班!");return 0;}return 1;
}int book(flightnode *&h,passengerList *&PList)
{char name[20];char ID_num[20];char flight_num[10];char start_place[20];char end_place[20];int ticket_num;int k;                              //没票的时候 想不想买别的票的时候  标志量flightnode *p = h->next;            //p指向航班链表的首节点printf("\t\t 请输入信息:\n");printf("\t\t 请输入起飞城市:");scanf("%s",start_place);printf("\t\t 请输入抵达城市:");scanf("%s",end_place);if(place_check(h,start_place,end_place) == 1)          //place_check同时会输出所有符合用户需求的航班{printf("\t\t 航班号:");scanf("%s",flight_num);while(p != NULL){if(strcmp(p->flight_num,flight_num) == 0){printf("\t\t 姓名:");scanf("%s",name);printf("\t\t 证件号码:");scanf("%s",ID_num);printf("\t\t 订票数量:");scanf("%d",&ticket_num);if(p->left > 0 && p->left >= ticket_num)   //判断是否剩余充足的座位{insert_passengerList(h,PList,name,ID_num,flight_num,ticket_num);printf("\t\t 你应付金额￥%6.2f.\n",p->price * p->price_discount * ticket_num);getch();printf("\t\t 恭喜您，订票成功啦!\n");return 1;}else{printf("\t\t ***很遗憾,该航班已满:!***\n");printf("\t\t ***如您想要选择其他航班请输入---1\n\t\t *** 不选则输入---0***\n");printf("\t\t 请输入数字进行选择:");scanf("%d",&k);if(k==1){printf("\t\t 此航线上的其他航班有:\n");if(find_same_flight(h,flight_num) == 1)              //该航班已经没有了座位 开始查找下一个节点 此时进行传参flight_num{printf("\t\t 请输入您选的航班:");scanf("%s",flight_num);insert_passengerList(h, PList, name, ID_num, flight_num, ticket_num);    //选择成功进行插入操作printf("\t\t 恭喜你,订票成功!\n");return 1;}}return 0;}}elsep = p->next;}if(p==NULL)                            //遍历到了乘客链表的尾节点printf("\t\t 对不起，您输入的航班不存在!\n");}return 0;
}void delete_flight(flightnode *&h, passengerList *&PList)
{flightnode *p,*pr;    //p指向航班链表的首节点 pr指向航班链表的头结点 定义的p即为需要删除的节点 下同passengernode *q,*qr;char flight_num[10];int mark = 1;qr = PList->head;q = qr->next;pr = h;p = pr->next;printf("\t\t 请输入您要删除的航班号:");scanf("%s",flight_num);while(p != NULL){if(strcmp(flight_num, p->flight_num) == 0){pr->next = p->next;   //需要删除的节点 的前一个节点直接指向 需要删除节点的后一个节点free(p);printf("\t\t 删除%s 航班成功!\n",flight_num);mark = 0;p = NULL;}if(pr->next != NULL){pr = pr->next;p = pr->next;}}if(mark == 1)printf("\t\t 无此航班,无法删除!\n");else                         //删除顾客链表中的信息  删除了航班信息同时还需要删除{while(q != NULL){if(strcmp(flight_num, q->flight_num) == 0){qr->next = q->next;     //要删除的乘客节点的前一个节点 直接指向要删除节点的后一个节点 进行删除操作free(q);q = NULL;}if(qr->next != NULL){qr = qr->next;q = qr->next;}}}
}int delete_passenger(passengerList *&PList, flightnode *&h, char *name,char *ID_num)      //退票  删除顾客信息
{passengernode *p, *pr = PList->head;     //p指向乘客链表的首节点 pr相当于乘客链表的头指针p = pr->next;while(p!=NULL){if((strcmp(name, p->name)==0) && strcmp(ID_num,p->ID_num)==0){for(flightnode *f=h->next; f!=NULL; f=f->next){if(strcmp(p->flight_num,f->flight_num) == 0){ f->left = f->left + p->ticket_num;f->isFull = 0;break;}}pr->next = p->next;              //链表中删除顾客节点free(p);printf("\t\t 乘客%s,%s 退票成功!\n",name,ID_num);return 1;}pr = pr->next;p = pr->next;}printf("\t\t 无此顾客,无法退票!\n");return 0;
}int check_passenger(passengerList *&PList, char *name, char *ID_num)
{passengernode *p, *pr = PList->head;         //p指针指向乘客链表的首节点 pr相当乘客链表的头指针p = pr->next;while(p != NULL){if((strcmp(name, p->name)==0) && strcmp(ID_num,p->ID_num)==0){printf("\n\t\t %s您已成功购买过票,您购买的航班号为:%s,您的订单号为:%d",p->name, p->flight_num, p->order_num);return 0;}else{pr = pr->next;p = pr->next;}}printf("\n\t\t %s您没有购票记录,谢谢您的查询", name);return 0;
}void cancel(passengerList *&PList,flightnode *&h)
{char name[20],ID_num[20];printf("\t\t 请输入您的姓名:");scanf("%s",name);printf("\t\t 请输入您的证件号:");scanf("%s",ID_num);delete_passenger(PList, h, name, ID_num);
}void passenger_check(passengerList *&PList)
{char name[20],ID_num[20];printf("\t\t 请输入您的名字:");scanf("%s",name);printf("\t\t 请输入您的证件号:");scanf("%s",ID_num);check_passenger(PList, name, ID_num);
}void modify_flight(flightnode *&h,passengerList *&PList)
{flightnode *p=h->next;                                    //p指针航班链表的首节点char flight_num[10],start_time[10],end_time[10];char a;printf("\t\t********航班信息修改*******************\n");printf("\t\t***************************************\n");printf("\t\t*         增加航班------1             *\n");printf("\t\t*         删除航班------2             *\n");printf("\t\t*         修改航班时间---3            *\n");printf("\t\t****************************************");printf("\t\t 请选择:");a = getch();printf("%c\n",a);if(a == '1')add_flight(h);else if(a == '2')delete_flight(h,PList);else if(a == '3'){printf("\t\t 请输入要修改的航班的航班号:");scanf("%s",flight_num);if(flight_num_check(p, flight_num) == 1){printf("\t\t 请输入修改后的起飞时间:");scanf("%s",start_time);printf("\t\t 请输入修改后的抵达时间:");scanf("%s",end_time);for(; p!=NULL; p=p->next){if(strcmp(flight_num, p->flight_num) == 0){strcpy(p->start_time, start_time);strcpy(p->end_time, end_time);printf("\t\t 航班%s 时间修改成功!\n",flight_num);}}}}elsereturn;
}int main()
{int t = 1;char choice;flightnode *flight;    //定义航班链表的结构体指针passengerList *PList;init_flight(flight);init_passengerList(PList);load_flight(flight);load_passenger(PList);while(t==1){printf("\n"); printf("\t\t\t***************飞机订票系统菜单***********************\n"); printf("\t\t\t******************************************************\n"); printf("\t\t\t*                录入航班信息----------1             *\n"); printf("\t\t\t*                查询航班信息----------2             *\n"); printf("\t\t\t*                订购    机票----------3             *\n"); printf("\t\t\t*                退订    机票----------4             *\n"); printf("\t\t\t*                查询订票信息----------5             *\n");printf("\t\t\t*                修改航班信息----------6             *\n"); printf("\t\t\t*                退出    系统----------0             *\n"); printf("\t\t\t******************************************************\n"); printf("\t\t\t 请选择服务:"); choice = getch();printf("%c\n",choice);system("cls");if(choice == '1'){add_flight(flight);getch();system("cls");}else if(choice == '2'){flight_check(flight);getch();system("cls");}else if(choice == '3'){book(flight,PList);getch();system("cls");}else if(choice == '4'){cancel(PList,flight);getch();system("cls"); }else if(choice == '5'){passenger_check(PList);getch();system("cls");}else if(choice == '6'){modify_flight(flight,PList);getch();system("cls");}else if(choice == '0'){printf("\t\t\t 欢迎您使用本系统  再见");t = 0; }}save_flight(flight);save_passenger(PList);return 0;
}

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