C语言实现简单航班管理系统

/*C语言实现简单的航班管理系统（单个文件）*/
#include <stdio.h>
#include <string.h>
#include<stdlib.h>
#include<assert.h>

#define PERSON_MAXNUM 100
#define PERSONNOTICKET_MAX 10
#define MAX_SIZE 10
int _size = 0;
int _person_size = 0;
int _personnoticket_size = 0;

//定义航班信息结构体
typedef struct plane
{
  char ID[10];
  char Start_Place[10];
  char End_Place[10];
  float price;
  int Buy_num;
  int Max_num;
  char time[20];
}Plane;

//定义乘客信息结构体
typedef struct Person
{
  int AirPlane_Num;
  char person_name[20];

}Person;




void home(Plane* p,Person* person, Person* person_noticket);//初始页面
void InitAirPlane(Plane** p);//初始化航班信息内存
void InputAirPlane(Plane* p);//输入航班信息
void CheckAirPlane(Plane* p);//查看航班信息
void DelAirPlane(Plane* p);//删除航班信息
void CheckAirPlaneOrder(Plane* p,Person* person);//查看航班订单
void PrintPerson(Plane* p, Person* person, int i);//打印航班乘客

void InitPerson(Person** person);//初始化乘客信息内存
void BookAirPlane(Plane* p, Person* person,Person* person_noticket);//预定航班
int CheckPerson(Plane* p, Person* person);//查看乘客订单信息
void ChangeAirPlane(Plane* p, Person* person);//改签
void ReturnTicket(Plane* p, Person* person);//退票


void PrintPerson(Plane* p, Person* person, int i);
void CheckPersonNoTicket(Plane* p, Person* person_noticket);//查看候补名单
///////////////////////////////////////

void home(Plane* p, Person* person, Person* person_noticket)
{
  int a, i, j;
  printf("n*****************************欢迎进入飞机票务系统*****************************n");
  printf("n*************您好，现在要确认您的身份！票务人员请按 1 ，旅客请按 0 ***********n");
  printf("请选择：");
  scanf("%d", &a);
  //航班管理人员操作
  if (a == 1)
    do{
      printf("n****************** 1.输入航班信息 *******************n");
      printf("n****************** 2.删除航班信息 *******************n");
      printf("n****************** 3.浏览航班信息 *******************n");
      printf("n****************** 4.浏览目前已订票信息 *************n");
      printf("n****************** 5.查看候补名单 *******************n");
      printf("n****************** 0.退出    ********************n");
      printf("请选择：");
      scanf("%d", &i);
      switch (i)
      {
        case 0: break;
        case 1:InputAirPlane(p);break;
        case 2:DelAirPlane(p);break;
        case 3:CheckAirPlane(p);break;
        case 4:CheckAirPlaneOrder(p, person); break;
        case 5:CheckPersonNoTicket(p, person_noticket); break;
        default:
          printf("输入错误！n");
          break;
      }
    } while (i != 0);
  //乘客操作
  if (a == 0)
    do{

      printf("n*********************** 1.订票 **********************n");
      printf("n*********************** 2.改签 **********************n");
      printf("n*********************** 3.退票 **********************n");
      printf("n*********************** 4.浏览航班信息 **************n");
      printf("n*********************** 5.查询个人订票信息 **********n");
      printf("n*********************** 0.退出 **********************n");
      printf("请选择：");
      scanf("%d", &j);
      switch (j)
      {
        case 0:break;
        case 1:BookAirPlane(p, person,person_noticket);break;
        case 2:ChangeAirPlane(p, person);break;
        case 3:ReturnTicket(p, person);break;
        case 4:CheckAirPlane(p);break;
        case 5:CheckPerson(p, person); break;
      }
    } while (j != 0);
}

//初始化
void InitAirPlane(Plane** p)
{
  assert(p);

  //申请空间
  *p = (Plane*)malloc(sizeof(Plane)*MAX_SIZE);
  if (NULL == *p)
  {
    printf("开辟空间失败！n");
    return;
  }
  (*p)->Buy_num = 0;
}
//输入航班信息
void InputAirPlane(Plane* p)
{
  if (_size <= MAX_SIZE)
  {
    printf("航班编号：%dn", _size);
    printf("输入航班ID:");
    scanf("%s", (p+_size)->ID);
    printf("输入始发地：");
    scanf("%s", (p + _size)->Start_Place);
    printf("输入目的地：");
    scanf("%s", (p + _size)->End_Place);
    printf("输入航班起飞时间：");
    scanf("%s", (p + _size)->time);
    printf("输入价格：");
    scanf("%f", &(p + _size)->price);
    printf("输入航班可乘坐最大人数：");
    scanf("%d", &(p + _size)->Max_num);
    do
    {
      printf("目前卖出机票数量：");
      scanf("%d", &(p + _size)->Buy_num);
      if ((p + _size)->Buy_num > (p + _size)->Max_num)
      {
        printf("输入已卖出机票数量错误！n");
        printf("请重新输入！nn");
      }
    } while ((p + _size)->Buy_num > (p + _size)->Max_num);
    _size++;
    printf("添加航班信息完成！nn");
  }
  else
  {
    printf("内存已满！n");
    return;
  }
}

//浏览航班信息
void CheckAirPlane(Plane* p)
{
  int i = 0;
  printf("目前在售的航班信息：nn");
  for (i = 0; i < _size; i++)
  {
    printf("航班编号：%dn", i);
    printf("ID:%sn", (p+i)->ID);
    printf("始发地：%sn", (p + i)->Start_Place);
    printf("目的地:%sn", (p + i)->End_Place);
    printf("起飞时间：%sn", (p + i)->time);
    printf("机票价格：%2fn", (p + i)->price);
    printf("剩余机票：%dn", ((p + i)->Max_num - (p + i)->Buy_num) );
    printf("n");
  }
}

//删除航班信息
void DelAirPlane(Plane* p)
{
  int j = 0;
  int i = -1;
  assert(p);
  printf("请输入要删除的航班编号：");
  scanf("%d", &i);
  for (j = i; j < _size; j++)
  {
    strcpy((p + j)->ID, (p + j + 1)->ID);
    strcpy((p + j)->Start_Place, (p + j + 1)->Start_Place);
    strcpy((p + j)->End_Place, (p + j)->End_Place);
    strcpy((p + j)->time, (p + j + 1)->time);
    (p + j)->price = (p + j + 1)->price;
    (p + j)->Max_num = (p + j + 1)->Max_num;
    (p + j)->Buy_num = (p + j + 1)->Buy_num;
  }
  _size--;
}

//初始化订票信息
void InitPerson(Person** person)
{
  assert(person);
  *person = (Person*)malloc(sizeof(Person)*PERSON_MAXNUM);
  if (NULL == *person)
  {
    printf("开辟空间失败！n");
    return;
  }
}

//订票
void BookAirPlane(Plane* p, Person* person, Person* person_noticket)
{
  int i = -1;
  CheckAirPlane(p);
  printf("请选择你要预定的航班编号：");
  scanf("%d", &i);
  if ((p + i)->Max_num == (p + i)->Buy_num)
  {
    printf("对不起，该航班机票已售完！n");
    printf("请输入您的姓名（我们将把您添加进候补名单）：");
    scanf("%s", (person_noticket+_personnoticket_size)->person_name);
    (person_noticket + _personnoticket_size)->AirPlane_Num = i;
    _personnoticket_size++;
    printf("添加候补名单成功！nn");
    return;
  }
  else
  {
    if (_person_size > PERSON_MAXNUM)
    {
      printf("存储容量不足！n");
      return;
    }
    printf("请输入姓名：");
    scanf("%s", (person + _person_size)->person_name);
    (person + _person_size)->AirPlane_Num = i;
    _person_size++;
    (p + i)->Buy_num++;
    printf("预定成功！n");
  }

}

//查看个人订票信息
int CheckPerson(Plane* p, Person* person)
{
  int flag = 0;
  int i = 0;
  char _name[20] = { 0 };
  printf("请输入您的姓名：");
  scanf("%s", &_name);
  printf("您的个人订票信息：nn");
  for (i = 0; i < _person_size; i++)
  {
    if (0 == strcmp(_name, (person + i)->person_name))
    {
      flag = 1;
      printf("订单编号：%dn", i);
      printf("姓名：%sn", (person + i)->person_name);
      printf("航班编号：%dn", (person + i)->AirPlane_Num);
      printf("航班ID:%sn", (p + (person + i)->AirPlane_Num)->ID);
      printf("始发地：%sn", (p + (person + i)->AirPlane_Num)->Start_Place);
      printf("目的地：%sn", (p + (person + i)->AirPlane_Num)->End_Place);
      printf("起飞时间:%sn", (p + (person + i)->AirPlane_Num)->time);
      printf("机票价格：%fn", (p + (person + i)->AirPlane_Num)->price);
      printf("n");
    }
  }
  if (0 == flag)
  {
    printf("未找到该乘客订票信息！n");
    return 0;
  }
  return 1;
}

//改签
void ChangeAirPlane(Plane* p, Person* person)
{
  int i = -1;
  int j = -1;
  if (0 == CheckPerson(p, person))
  {
    return;
  }
  printf("请输入要改签的订单编号：");
  printf("n");
  scanf("%d", &i);
  (p + i)->Buy_num--;
  CheckAirPlane(p);
  do
  {
    printf("请输入要改签的航班编号：");
    scanf("%d", &j);
    if ((p + j)->Buy_num >= (p + j)->Max_num)
    {
      printf("该次航班已满员，请重新选择！n");
    }
  } while ((p + j)->Buy_num >= (p + j)->Max_num);
  (person + i)->AirPlane_Num = j;
  (p + j)->Buy_num++;
  printf("改签成功！nn");
}


//删除订单
void ReturnTicket(Plane* p, Person* person)
{
  int i = -1;
  int j = 0;
  CheckPerson(p, person);
  printf("请输入要删除的订单编号：");
  scanf("%d", &i);
  for (j = i; j < _person_size; j++)
  {
    (person + j)->AirPlane_Num = (person + j + 1)->AirPlane_Num;
    strcpy((person + j)->person_name, (person + j + 1)->person_name);
  }
  printf("退票成功！n");
}


//查看目前订票信息
void CheckAirPlaneOrder(Plane* p, Person* person)
{
  int i = -1;
  for (i = 0; i < _size; i++)
  {
    printf("航班编号：%dn", i);
    printf("ID:%sn", (p + i)->ID);
    printf("始发地：%sn", (p + i)->Start_Place);
    printf("目的地:%sn", (p + i)->End_Place);
    printf("起飞时间：%sn", (p + i)->time);
    printf("机票价格：%2fn", (p + i)->price);
    printf("剩余机票：%dn", ((p + i)->Max_num - (p + i)->Buy_num));
    printf("买票人信息："); PrintPerson(p,person, i);
  }
}
void PrintPerson(Plane* p, Person* person,int i)
{
  int ticket_num = 0;
  int j = 0;
  for (j = 0; j < _person_size; j++)
  {
    if ((person + j)->AirPlane_Num == i)
    {
      printf("%s ,", (person + j)->person_name);
      ticket_num++;
    }
  }
  printf("nn");
}

//候补名单初始化
void InitPersonNoTicket(Person** person_noticket)
{
  assert(person_noticket);
  *person_noticket = (Person*)malloc(sizeof(Person)*PERSONNOTICKET_MAX);
  if (NULL == *person_noticket)
  {
    printf("开辟空间失败！n");
    return;
  }
}

//查看候补名单
void CheckPersonNoTicket(Plane* p, Person* person_noticket)
{
  int i = 0;
  printf("候补名单：nn");
  if (0 == _personnoticket_size)
  {
    printf("候补名单为空！nn");
    return;
  }
  for (i = 0; i < _personnoticket_size; i++)
  {
    printf("姓名：%sn", (person_noticket + i)->person_name);
    printf("所需要航班编号：%dn", (person_noticket + i)->AirPlane_Num);
    printf("航班ID:%sn", (p + ((person_noticket + i)->AirPlane_Num))->ID);
    printf("始发地：%sn", ((p + ((person_noticket + i)->AirPlane_Num))->Start_Place));
    printf("目的地：%sn", (p + ((person_noticket + i)->AirPlane_Num))->End_Place);
  }
}
//主函数
int main()
{
  Plane* p=NULL;
  Person* person=NULL;
  Person* person_noticket = NULL;
  InitPersonNoTicket(&person_noticket);
  InitAirPlane(&p);
  InitPerson(&person);
  while (1)
  {
    home(p, person, person_noticket);
  }
  system("pause");
  return 0;
}