飞机票订票系统，需要源程序 数据文件
耳二级菜单自定，输出格式最好是电子表格，每个模块自定，数组长度采用宏定义，也可以用链表实现
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
//#include "getch.h"
#include <conio.h>
#define MAX_Flight 50 // 最大航班数
#define MAX_Passenger 20 // 单航班最多乘客数
#define MAX_Order 50 // 最大订票数
typedef struct Flight
{
char fid[20]; //航班号
char fname[20]; //航班名称
char start[10]; //起点
char end[10]; //终点
int fnum; //票数
}Flight;
typedef struct Passenger
{
char pid[20]; //身份证
char pname[10]; //姓名
char password[20]; //密码
char tell[20]; //电话
}Passenger;
typedef struct Order
{
char pid[20]; //身份证
char fid[20]; //航班号
int num; //票数
}Order;
Flight *FLI; // 定义全局变量
Passenger *PAS;
Order *ORD;
char start[10]; //起点
char end[10]; //终点
char search_fid[50][20]; //符合条件的航班号
int search_fnum[50]; //符合条件的航班票数
int online = 0; //是否登录的变量
char online_pid[20]; //在线用户的身份证
int search_num = 0; //符合条件的航班数
void init_sys(void); // 系统初始化
void show_flight(void); // 显示航班表
void start_sys(void); // 系统开始运行
void exit_sys(void); // 退出系统
void menu(void); // 生成主菜单
void login(void); // 登录
void logout(void); //用户登出
void passenger_info(void); //查询旅客信息
bool change_pas_info(void); //修改旅客信息
void search_start(void); // 生成查询页面
bool search(void); // 查询航班
void order_list(void); // 生成订单表
void del_order(void); // 退票
void clear_stdin(void); // 清除输入缓冲区
char* get_str(char* str,size_t len); // 获取字符串
char get_cmd(char start,char end); // 获取cmd命令
// 主函数
int main()
{
init_sys(); // 系统初始化
start_sys(); // 系统开始运行
exit_sys(); // 系统结束
return 0;
}
// 系统初始化
void init_sys(void)
{
// 申请堆内存、加载数据
FLI = calloc(MAX_Flight,sizeof(Flight));
PAS = calloc(MAX_Passenger,sizeof(Passenger));
ORD = calloc(MAX_Order,sizeof(Order));
printf("system_init...\n");
// 以只读方式打开 order.txt,如果文件不存在则打开失败，返回值为空。
FILE* ofrp = fopen("order.txt","r");
if(NULL == ofrp) // 打开失败直接退出
{
printf("order.txt open failed!\n");
exit(0);
}
int i = 0;
for(i = 0; i < MAX_Order; i++) //读取文本中的数据到内存，全局变量ORD中
{
int num = 0;
num = fscanf(ofrp,"%s %s %d\n", ORD[i].pid, ORD[i].fid, &ORD[i].num);
}
FILE* ffrp = fopen("flight.txt","r");
if(NULL == ffrp)
{
printf("flight.txt open failed!\n");
exit(0);
}
for(i = 0; i < MAX_Flight; i++)
{
int num = 0;
num = fscanf(ffrp,"%s %s %s %s %d\n", FLI[i].fid, FLI[i].fname, FLI[i].start, FLI[i].end, &FLI[i].fnum);
}
FILE* pfrp = fopen("passenger.txt","r");
if(NULL == pfrp)
{
printf("passenger.txt open failed!\n");
exit(0);
}
for(i = 0; i < MAX_Passenger; i++)
{
int num = 0;
num = fscanf(pfrp,"%s %s %s %s\n", PAS[i].pid, PAS[i].pname, PAS[i].password, PAS[i].tell);
}
}
// 显示航班表
void show_flight(void)
{
int i = 0;
for(i = 0; i < MAX_Flight; i++)
{
if(strlen(FLI[i].fid) != 0)
{
printf("id:%s name:%s start:%s end:%s fnum:%d\n", FLI[i].fid, FLI[i].fname, FLI[i].start, FLI[i].end,
FLI[i].fnum);
}
}
}
// 系统开始运行
void start_sys(void)
{
// 进入系统的业务流程控制
//printf("系统开始运行...\n");
//show_flight();
while(true)
{
menu();
switch(get_cmd('0','7')) // 获取键盘输入
{
case '1': search_start(); break;
case '2': order_list(); break;
case '3': del_order(); break;
case '4': passenger_info(); break;
case '5': change_pas_info(); break;
case '6': login(); break;
case '7': logout(); break;
case '0': return;
}
}
}
// 系统结束
void exit_sys(void)
{
printf("data insert...\n");
FILE* ofwp = fopen("order.txt","w");
printf("ready insert order.txt\n");
int i= 0;
for(i = 0; i < MAX_Order; i++) //数据存储回本地
{
int num = 0;
if(strlen(ORD[i].pid) != 0)
{
num = fprintf(ofwp,"%s %s %d\n", ORD[i].pid, ORD[i].fid, ORD[i].num);
//printf("insert order.txt success\n");
}
}
// 以只写方式打开文件flight.txt，如果文件不存在则创建，如果文件存在则把内容清空。
FILE* ffwp = fopen("flight.txt","w");
printf("insert flight.txt\n");
for(i = 0; i < MAX_Flight; i++)
{
int num = 0;
if(strlen(FLI[i].fid) != 0)
{
num = fprintf(ffwp,"%s %s %s %s %d\n", FLI[i].fid, FLI[i].fname, FLI[i].start, FLI[i].end, FLI[i].fnum);
//printf("insert flight.txt success\n");
}
}
FILE* pfwp = fopen("passenger.txt","w");
printf("insert passenger.txt\n");
for(i = 0; i < MAX_Passenger; i++)
{
int num = 0;
if(strlen(PAS[i].pid) != 0)
{
num = fprintf(pfwp,"%s %s %s %s\n", PAS[i].pid, PAS[i].pname, PAS[i].password, PAS[i].tell);
//printf("insert passenger.txt success\n");
}
}
// 释放内存、保存数据
free(FLI);
free(PAS);
free(ORD);
printf("exit...\n");
}
// 生成主菜单
void menu(void)
{
printf("\n");
printf("********************************\n");
printf("| |\n");
printf("| flight order system |\n");
printf("* 1.search_flight *\n"); //查询航班
printf("| 2.order_list |\n"); //查询订票信息
printf("* 3.del_order *\n"); //退订
printf("| 4.passenger_info |\n"); //查询旅客信息
printf("* 5.change_pas_info *\n"); //修改旅客信息
printf("| 6.login |\n"); //用户登录
printf("* 7.logout *\n"); //用户登出
printf("| 0.exit_sys |\n"); //退出系统
printf("| |\n");
printf("********************************\n");
//printf("\n");
}
// 登录
void login(void)
{
if(online == 0) //如果没有登录
{
int i=0;
int time = 0;
while(time < 3)
{
char entry_pid[20]; //临时变量身份证
char entry_pw[20]; //临时变量密码
printf("please login!\n");
printf("please entry pid:");
get_str(entry_pid, 20);
printf("please entry password:");
get_str(entry_pw, 20);
// 遍历所有乘客
for(i = 0; i < MAX_Passenger; i++)
{
// 数据长度校验
if(strlen(entry_pid) == 0 || strlen(entry_pw) == 0)
{
printf("pid or password can't be empty\n");
time++;
break;
}
// 成功匹配账号密码
else if(strcmp(PAS[i].pid, entry_pid) == 0 && strcmp(PAS[i].password, entry_pw) == 0)
{
printf("login success!\n");
strncpy(online_pid, entry_pid, 20);
online = 1;
return;
}
else if(i == MAX_Passenger-1)
{
printf("pid or password error\n");
time++;
}
}
}
online = -1;
printf("you have been locked,you can use this system now\n");
}
else if(online ==1)
{
printf("you have been login\n");
}
else
{
printf("you have been locked,you can use this system now\n");
}
}
// 用户登出
void logout(void)
{
if(online == 1) //如果已经登录
{
online = 0;
printf("logout success\n");
}
else if(online == -1)
{
printf("you have been locked,you can use this system now\n");
}
else
{
printf("you have not login\n");
}
}
// 查询旅客信息
void passenger_info(void)
{
if(online == 1) //如果已经登录
{
//printf("online_pid:");
//puts(online_pid);
int i = 0;
for(i = 0; i < MAX_Passenger; i++)
{
if(strcmp(online_pid, PAS[i].pid) == 0)
{
printf("pid:%s, pname:%s, password:%s, tell:%s\n", PAS[i].pid, PAS[i].pname, PAS[i].password, PAS[i].tell);
break;
}
}
}
else if(online == -1)
{
printf("you have been locked,you can use this system now\n");
}
else
{
printf("you have not login\n");
}
}
//修改旅客信息
bool change_pas_info(void)
{
if(online == 1) //如果已经登录
{
printf("your old info:\n");
int i = 0;
for(i = 0; i < MAX_Passenger; i++)
{
if(strcmp(online_pid, PAS[i].pid) == 0)
{
printf("pid:%s, pname:%s\npassword:%s, tell:%s\n", PAS[i].pid, PAS[i].pname, PAS[i].password, PAS[i].tell);
break;
}
}
char new_pid[20] = {0};
char new_pname[10] = {0};
char new_password[20] = {0};
char new_tell[20] = {0};
printf("please entry new pid:");
get_str(new_pid, 20);
printf("please entry new pname:");
get_str(new_pname, 10);
printf("please entry new password:");
get_str(new_password, 20);
printf("please entry new tell:");
get_str(new_tell, 20);
strncpy(PAS[i].pid, new_pid, 20);
strncpy(PAS[i].pname, new_pname, 20);
strncpy(PAS[i].password, new_password, 20);
strncpy(PAS[i].tell, new_tell, 20);
printf("change success\n");
}
else if(online == -1)
{
printf("you have been locked,you can use this system now\n");
}
else
{
printf("you have not login\n");
}
}
// 开始查询航班
void search_start(void)
{
if(search())
{
printf("1.order\n");
printf("0.back\n");
char cmd = get_cmd('0', '1');
if(cmd == '0')
{
return;
//start_sys();
}
else
{
char fid[20]; // 选择的航班号
if(online == 1) // 如果已经登录
{
printf("please entry fid:");
get_str(fid, 20);
if(0 == strlen(fid))
{
printf("fid is empty\n");
}
int i = 0;
for(i = 0; i < search_num; i++)
{
//printf("fid:%s s_fid:%s num:%d\n",fid,search_fid[i],search_fnum[i]);
if(strcmp(fid,search_fid[i]) == 0 && search_fnum[i] > 0) //查询到对应航班
{
printf("order success\n");
int j = 0;
for(j = 0; j < MAX_Flight; j++) // 遍历航班表
{
if(strcmp(fid, FLI[j].fid) == 0)
{
FLI[j].fnum--; //票数减1
break;
}
}
int k = 0;
for(k = 0; k < MAX_Order; k++) // 遍历订票表
{
//printf("ready insert...\n");
if(strlen(ORD[k].pid) == 0) // 在空位置插入数据
{
strcpy(ORD[k].pid, online_pid); // 插入当前用户身份证
strcpy(ORD[k].fid, search_fid[i]); // 插入当前选择的航班号
ORD[k].num = 1;
printf("insert_to_order success\n");
break;
}
}
return;
}
else if(strcmp(fid,search_fid[i]) == 0 && search_fnum[i] == 0)
{
printf("no ticket\n");
search_start();
}
else if(i == MAX_Flight-1)
{
printf("don't have this fid\n");
search_start();
}
}
}
else if(online == -1)
{
printf("you have been locked,you can use this system now\n");
}
else
{
login();
}
}
}
}
// 查询航班
bool search(void)
{
printf("start: \n");
get_str(start,10);
printf("end: \n");
get_str(end,10);
int i = 0;
search_num = 0;
// 遍历所有航班
for(i = 0; i < MAX_Flight; i++)
{
if(strlen(start) == 0 || strlen(end) == 0)
{
printf("start or end can't be empty\n");
return false;
}
if(strcmp(FLI[i].start, start) == 0 && strcmp(FLI[i].end, end) == 0)
{
printf("fid:%s, ticket_num:%d\n", FLI[i].fid, FLI[i].fnum);
strncpy(search_fid[search_num], FLI[i].fid, 20);
search_fnum[search_num] = FLI[i].fnum;
//printf("search_fid[%d]:%s, search_fun[%d]:%d\n",search_num,search_fid[search_num],search_num,search_fnum[search_num]);
++search_num;
}
if(0 == search_num && i == MAX_Flight-1)
{
printf("no flight\n");
return false;
}
if(search_num > 0 && i == MAX_Flight-1)
{
//show_flight();
return true;
}
}
}
// 输出订单信息
void order_list(void)
{
if(online == 1)
{
int i = 0;
for(i = 0; i < MAX_Order; i++)
{
if(strcmp(online_pid, ORD[i].pid) == 0)
{
//printf("online_pid:%s\n",online_pid);
printf("fid:%s, pid:%s, ticket:%d\n", ORD[i].fid, ORD[i].pid, ORD[i].num);
}
}
}
else if(online == -1)
{
printf("you have been locked,you can use this system now\n");
}
else
{
login();
}
}
// 删除订单
void del_order(void)
{
if(online == 1)
{
char fid[20];
printf("order_list:\n");
order_list();
printf("please entry del_order fid:");
get_str(fid, 20);
int i = 0;
// 遍历所有订单
for(i = 0; i < MAX_Order; i++)
{
if(strlen(fid) == 0) //判空
{
printf("del_order fid can't be empty\n");
return;
}
if(strcmp(fid, ORD[i].fid) == 0)
{
memset(ORD[i].pid, '\0', sizeof(ORD[i].pid));
int j = 0;
for(j = 0; j < MAX_Flight; j++)
{
if(strcmp(fid, FLI[j].fid) == 0)
{
FLI[j].fnum++; // 返还飞机票
break;
}
}
printf("delete success\n");
return;
}
}
}
else if(online == -1)
{
printf("you have been locked,you can use this system now\n");
}
else
{
login();
}
}
// 清理输入缓冲区
/*void clear_stdin(void)
{
stdin->_IO_read_ptr = stdin->_IO_read_end;//清理输入缓冲区
}
*/
// 读取输入字符串
char* get_str(char* str, size_t len)
{
if(NULL == str)
{
puts("empty ptr！");
return NULL;
}
char *in = fgets(str, len, stdin);
size_t cnt = strlen(str);
if('\n' == str[cnt-1])
{
str[cnt-1] = '\0';
}
else
{
scanf("%*[^\n]");
scanf("%*c");
}
//clear_stdin();
return str;
}
// 获取cmd命令
char get_cmd(char start, char end)
{
//clear_stdin();
printf("please entry cmd:");
while(true)
{
char val = getch();
if(val >= start && val <= end)
{
printf("%c\n",val);
return val;
}
}
}
C语言实现飞机订票系统_编程小程的博客-CSDN博客_c语言飞机订票系统 为了增加对数据结构中链表知识的理解和对实际问题的应用，文中将用C语言实现飞机订票系统，主要实现了机票信息的添加、查找、显示、修改和订票、退票功能，其中用链表来存储数据，程序结束时，可以把数据保存到文件中。 
https://blog.csdn.net/qq_42795061/article/details/123640695