C language curriculum design of the train ticketing system implementation

Course for train booking system

1. Header files and macros description.

#include"stdio.h"
#include"conio.h"
#include"string.h"
#include"time.h"
#include"stdlib.h"
#define STR_LEN  30
#define MAX 50

2. The definition of the structure, to ensure that information entered standard.
(1) train structure (including the train station numbers, tickets starting point, the end of the ticket, departure time, arrival time of the basic information, fares, votes, etc.)

typedef struct train{
	int stationId; //车站号
	char from[STR_LEN]; //车票起点
	char to[STR_LEN]; //车票终点
    char stime[16];//出发时间
    char rtime[16];//到达时间
	int money; //票价
	int ticket;//票数
}Train;

(2) the user structure (including user name, ID number, telephone users, users purchase train number, order number)

typedef struct user{
	char name[MAX];//用户姓名 
	char id[MAX];//身份证号 
	char tele_num[MAX];//用户电话 
	int t_id;//用户所购的列车号 
	int order_no;//订单编号 
}User;

(3) structure pointer define, implement tandem node.

typedef struct node  //定义列车节点 
{
	Train data;
	struct node *next;
}Node,*link;

typedef struct unode	//定义用户链表 
{
	User data;
	struct unode *next;
}uNode,*ulink;

3. Functional function declaration

void menu();					//菜单显示 
void luru(link l);//文件信息录入 
void search_t_to(link l);//按终点站查询 
void search_t_id(link l);//按列车号查询 
void search_t_from(link l);//按发车站查询 
void search(link l);//列车信息查找 
void save(link l);//文件保存 
void orderTicket(link l,ulink u);		//订票服务 
void returnTicket(link l,ulink &u);//退票服务 
void updateInfo(link l);//列车信息修改 
void Info(Node *p);//列车信息显示 
void Judge_ticket(Node *p);		//票数非负判断 
void Judge_money(Node *p);		//票价非负判断 
void except_id(Node *p,link l);//列车号录入查重 
void except_update_id(Node *p);//修改列车号查重 
void all_show(link l);//查询全部用户 
void all_user(ulink u);//用户信息查询 
void load(link l);//文件数据载入
void uInfo(uNode *p);//用户信息 
void exitSystem();				//退出系统

4. Function Function definitions
(1) to print a menu list

void menu()    //菜单函数 
{
    printf("\n\t---------------------------------欢迎来到火车订票系统---------------------------------\n");
	printf("\n\t*********************************\n");
	printf("\t\t1.录入列车信息\n\t\t2.查询列车情况\n\t\t3.修改列车信息\n\t\t4.订票服务\n\t\t5.退票服务\n\t\t6.保存已录入的信息\n\t\t7.读取已有的列车信息\n\t\t8.退出系统");
	printf("\n\t*********************************\n\t");
	printf("输入您所要执行的功能(0-8)：");
}

(2) determining RMS votes

void Judge_ticket(Node *p)		//票数非负判断 
{
	if(p->data.ticket<0)
	{
		printf("\t票数输入有误，请重新输入： ");
		scanf("%d",&p->data.ticket);
		Judge_ticket(p);
	}
}

(3) determining RMS fare

void Judge_money(Node *p)		//票价非负判断 
{
	if(p->data.money<0)
	{
		printf("\t票价输入有误，请重新输入： ");
		scanf("%d",&p->data.money);
		Judge_money(p);
	}
}

(4) train number re-entry check

void except_id(Node *p,link l)//录入列车号查重 
{
	Node *q;
	q=l;
	while(q!=NULL)
	{
	if(p->data.stationId==q->data.stationId)
	{
		printf("\t当前列车班次已存在,请重新输入："); 
		scanf("%d",&p->data.stationId);
		except_id(p,l);
	}
	else
		q = q -> next;
	}
}

(5) No modification train rechecking

void except_update_id(Node *p)//修改列车号查重 
{
	Node *q,*m;
	q = p -> next;
	while(q!=NULL)
	{
		if(p->data.stationId == q->data.stationId)
		{
			printf("\t当前列车班次已存在,请重新输入："); 
			scanf("%d",&p->data.stationId);
			except_update_id(p);
		}
		else
			q = q -> next;
	}
}

(6) Train information input

void luru(link l)//文件信息录入 
{
	Node *p,*q;
	while(1)
	{
		q = l;
		while(q->next!=NULL)
		{
			q = q -> next;
		}
		p = (Node *)malloc(sizeof(Node));
		printf("\n\t---------------------------------列车信息录入---------------------------------\n");
		if(!p)
		{
			printf("录入出错！");
			exit(0); 
		}
		printf("\n\t1.请输入列车号：");
		scanf("%d",&p->data.stationId);
		except_id(p,l);
		printf("\t2.请输入起点站名称：");
		scanf("%s",&p->data.from);
		printf("\t3.请输入终点站名称：");
		scanf("%s",&p->data.to);
		printf("\t4.请输入列车出发时间(时分格式为00:00)：");
		scanf("%s",&p->data.stime);
		printf("\t5.请输入列车到达时间(时分格式为00:00)：");
		scanf("%s",&p->data.rtime);
		printf("\t6.请输入票价：");
		scanf("%d",&p->data.money);
		Judge_money(p); 
		printf("\t7.请输入票数：");
		scanf("%d",&p->data.ticket);
		Judge_ticket(p);
		p->next=NULL;
		q->next=p;
		q = p;
		printf("\t录入成功！\t");
		break;
	}
}

Save (7) to the entry information file

void save(link l)//文件保存 
{
	Node *p;
	FILE *fp;
	p=l->next;
	if((fp = fopen("train","wb")) == NULL)
	{
		printf("\t********文件打开失败！*********");
		exit(0);
	}
	else
		printf("\t========文件保存成功！=========");
	while(p) 
	{
		fwrite(p,sizeof(Node),1,fp);
		p=p->next;
	}
	fclose(fp);
} 

(8) File Data Loader

void load(link l)//文件数据载入
{
	Node *p,*r;
	FILE *fp;
	l->next=NULL; 
	r = l;
	if((fp = fopen("train","rb")) == NULL)
	{
		printf("\n\t********文件打开失败！*********");
	}
	else
	{
		printf("\n\t========文件数据导入成功！=========");
		while(!feof(fp))
		{
			p = (Node *)malloc(sizeof(Node));
			if(fread(p,sizeof(Node),1,fp) != 1)
				break;
			else
			{
				p -> next = NULL;
				r -> next = p;
				r = p;	
			}
		}
	}
} 

(9) train information display print

void Info(Node *p)//列车信息显示 
{
	printf("\t%5d",p->data.stationId);
	printf("%8s",p->data.from);
	printf("%8s",p->data.to);
	printf("%10s",p->data.stime);
	printf("%15s",p->data.rtime);
	printf("%15d",p->data.money);
	printf("%15d\n",p->data.ticket);
}

(10) train information inquiry

void search_t_id(link l)//按列车号查询 
{
	int num_c;
	Node *p;
	p = l;
	printf("请输入您需要查找的列车信息的列车号：");
	scanf("%d",&num_c);
	printf("\n\t\t\t\t******-----查询结果-----******\n");
	printf("\t列车号\t发车站\t到达站\t发车时间\t到达时间\t票价(元)\t票数（张）\n"); 
	while(p)
	{
		if(p->data.stationId == num_c)
		{
			Info(p);
			break;
		}
		p = p -> next;
	}
	if(!p)
	{
		printf("\t\t未找到该列车号的信息!\n");
	}
}

void search_t_from(link l)//按发车站查询 
{
	Node *p;
	char pstart[STR_LEN];
	p = l;
	int count = 0;
	printf("请输入您需要查找的列车信息的始发站：") ;
	scanf("%s",&pstart);
	printf("\n\t\t\t\t******-----查询结果-----******\n");
	printf("\t列车号\t发车站\t到达站\t发车时间\t到达时间\t票价(元)\t票数（张）\n"); 
	while(p)
	{
		if(strcmp(p->data.from,pstart)==0)
		{
			Info(p);
			count++;
			if(p->next==NULL)
			break;
			else
			p=p->next;
		}
		if(p->next!=NULL)
		p = p -> next;
		else
		break;
	}
	if(p==NULL||count == 0)
	{
		 printf("\t\t\t.......未找到该列车信息!");
	}
}

void search_t_to(link l)//按终点站查询 
{
	Node *p;
	char preach[STR_LEN];
	p = l -> next;
	int count = 0;
	printf("请输入您需要查找的列车信息的终点站：") ;
	scanf("%s",&preach);
	printf("\n\t\t\t\t******-----查询结果-----******\n");
	printf("\t列车号\t发车站\t到达站\t发车时间\t到达时间\t票价(元)\t票数（张）\n"); 
	while(p)
	{
		if(strcmp(p->data.to,preach)==0)
		{
			Info(p);
			count++;
		}
			if(p->next==NULL) 
				break;
				else
		p = p -> next;
	}
	if(!p||count==0)
	{
		 printf("\t\t\t.......未找到该列车信息!");
	}
}

void uInfo(uNode *p)//用户信息 
{
	printf("\t%s\t",p->data.id);
	printf("%s\t",p->data.name);
	printf("%s\t\t",p->data.tele_num);
	printf("%d\t",p->data.t_id);
	printf("%d",p->data.order_no);
}

void all_show(link l)//查询全部 
{
	Node *p;
	p = l -> next;
	printf("\n\t\t\t\t******-----查询结果-----******\n");
	printf("\t列车号\t发车站\t到达站\t发车时间\t到达时间\t票价(元)\t票数（张）\n"); 
	if(p == NULL)
	{
		printf("\t\t\t.......未查询到任何列车信息！");
	}
	while(p != NULL)
	{
		Info(p);
		p = p -> next;
	}
}

void all_user(ulink u)//用户信息查询 
{
	uNode *p;p=u;
	printf("\n\t\t\t\t******-----查询结果-----******\n");
	if(p == NULL)
	{
		printf("\t\t\t.......未查询到任何列车信息！");
	}
	while(p != NULL)
	{
		uInfo(p);
		p = p -> next;
	}
}

void search(link l)//列车信息查找 
{
	int num_cf;
	printf("\n\t---------------------------------列车信息查询---------------------------------\n");
	printf("\t1.按列车号查询\n\t2.按始发站查询\n\t3.按终点站查询\n\t4.查询所有列车信息\n\n");
	printf("\t请输入您的查询方式：");
	scanf("%d",&num_cf);
	printf("\n\t---------------------------------————————-----------------------------\n");
	if(num_cf == 1)	
		search_t_id(l);
	else if(num_cf == 2)
		search_t_from(l);
	else if(num_cf == 3)
		search_t_to(l);
	else if(num_cf == 4)
		all_show(l);
	else
		printf("\t\t输入错误！！");
}

(11) Modify train information

void updateInfo(link l)//列车信息修改 
{
	int num;
	int n;
	Node *p;
	p=l;
	if(p==NULL)
	{
		printf("\t**暂时没有可以修改的列车信息**\n"); 
		
	}
	else
	{
		printf("请输入需要修改列车信息的列车号：");
		scanf("%d",&num);
		while(p->data.stationId!=num)
		{
			p=p->next;
			if(p==NULL)
			{
				printf("找不到该列车信息");
				break; 
			}
		}
		if(p!=NULL)
		{
			printf("\n\t---------------------------------列车信息修改---------------------------------\n");
			printf("\t1.列车号\n\t2.起始站\n\t3.终点站\n\t4.出发时间\n\t5.到达时间\n\t6.票价\n\t7.票数\n");
			printf("\t---------------------------------——————---------------------------------\n");
			printf("\t请输入您要修改的信息编号：");
			scanf("%d",&n);
			switch(n)
			{
				case 1:
					printf("\t请输入变更后的列车号:");
					scanf("%d",&p->data.stationId);
					except_update_id(p);
					break;
				case 2:
					printf("\t请输入变更后的起始站:");
					scanf("%s",&p->data.from);
					break;
				case 3:
					printf("\t请输入变更后的终点站:");
					scanf("%s",&p->data.to);
				break;
				case 4:
					printf("\t请输入变更后的出发时间(时分格式为00:00)：");
					scanf("%s",&p->data.stime);
					break;
				case 5:
					printf("\t请输入变更后的到达时间(时分格式为00:00)：");
					scanf("%s",&p->data.rtime);
					break;
				case 6:
					printf("\t请输入变更后的票价：");
					scanf("%d",&p->data.money);
					Judge_money(p);
					break;
				case 7:
					printf("\t请输入变更后的票数：");
					scanf("%d",&p->data.ticket);
					Judge_ticket(p);
					break;
				default:
					printf("\t输入错误！");
					system("pause"); 
			} 
			if(n>=1&&n<=7)
				printf("\t**修改成功**"); 
		}
	}	
}

(12) Ticket service implementation

void orderTicket(link l,ulink u)		//订票服务 
{
	Node *p;
	uNode *r,*q;
	int n;
	p = l;
	int t_id;
	printf("\n\t---------------------------------火车票订单填写---------------------------------\n");
	printf("\t请输入您需要预订的列车号：");
	scanf("%d",&t_id); 
	while(p!=NULL&&p->data.stationId!=t_id)
	{
		p = p->next;
	}
	if(p==NULL)
	{
		printf("\t**暂无相关车票可预订!**"); 
	}
	else
	{
		if(p->data.ticket<=0)
		{
			printf("\t**该列车车票已经售空**"); 
		} 
		else
		{
			while(1)
			{
				q = u;
				while(q->next!=NULL)
				{
					q = q -> next;
				}
				r = (uNode *)malloc(sizeof(uNode));
				printf("\n\t#####请按提示输入您的个人信息#####\n");
				printf("\t请输入您的姓名：");
				scanf("%s",&r->data.name); 
				printf("\t请输入您的身份证号码：");
				scanf("%s",&r->data.id);
				printf("\t请输入您的手机号码：");
				scanf("%s",&r->data.tele_num);
				r->data.t_id = t_id;
				p->data.ticket = p->data.ticket-1;
				srand((int)time(NULL));
				n = rand()%8999+1000;
				r -> data.order_no = n;
				printf("\t订票成功，您已成功预订一张列车号为%d的车票,",r->data.t_id);
				printf("订单编号为%d",r->data.order_no);
				r->next=NULL;
				q->next=r;
				q = r;
				break;
			}
		} 
	}
}

(13) Refund service implementation

void returnTicket(link l,ulink &u)//退票服务 
{
	Node *p,*m;
	uNode *q,*r;
	char id[MAX];
	int ord;
	q = (uNode *)malloc(sizeof(uNode));
	p=l;
	r=u;
	char s;
	int input_t_id;
	printf("\n\t---------------------------------火车票退票界面---------------------------------\n");
	printf("\t请输入您需要退票的列车号：");
	scanf("%d",&input_t_id);
	printf("\t请输入您的身份证号：");
	scanf("%s",&id);
	printf("\t请输入您的订单编号：");
	scanf("%d",&ord); 
	while(r!=NULL)
	{
		if(strcmp(r->data.id,id)==0&&input_t_id==r->data.t_id&&ord==r->data.order_no)
		{
			printf("\t您当前的订票信息如下：\n");
			printf("\t名字：%s\n",r->data.name);
			printf("\t电话号码为：%s\n",r->data.tele_num);
			printf("\t列车号码为:%d\n",r->data.t_id); 
			break;
		}
		else if(r==NULL)
		{
			printf("\t查询不到您的订票信息");
		}
		else
		{
			r=r->next;	
		}
	}
	if(r==NULL)
	{
		printf("\t**查询不到您的订票信息**");
	}
	else
	{
		printf("\t您确定要退票吗(Y/N)？");
		fflush(stdin);
		scanf("%c",&s);
		if(s=='y'||s=='Y')
		{
			while(p!=NULL&&p->data.stationId!=input_t_id)
			{
				p=p->next;
			}
			if(p==NULL)
			{
				printf("查询不到该车票信息");
			}
			else 
			{
				p->data.ticket += 1;
				q = r;
				r->next=q->next;
				free(r);
			}
			printf("\t**退票成功，感谢使用!**\n");
		}
		else
			printf("\n\t**您已取消退票**");
	}
}

(14) a main function (program entry)

int main()
{
	link l;
	int num_f;
	ulink u;
	l = (Node *)malloc(sizeof(Node));
	u = (uNode *)malloc(sizeof(uNode));
	l -> next = NULL;
	u -> next = NULL;
	do
	{
		system("date 2018/12/07");
		system("color F4");
		menu();
		scanf("%d",&num_f);
		system("cls");
		switch(num_f)
		{
			case 1:
				luru(l);break;
			case 2:
				search(l);break;
			case 3:
				updateInfo(l);break;
			case 4:
				orderTicket(l,u);break;
			case 5:
				returnTicket(l,u);break;
			case 6:
				save(l);break;
			case 7:
				load(l);break;
			case 8:
				exit(0);break;
			/*case 9:
				all_user(u);break;*/
			default:
				continue;
		}
	}while(1);
	return 0;
}