C++简易酒店管理系统，实现（查询、入住、退房、楼层选择、退出）功能

#include <iostream>

#include <string.h>

#include <stdlib.h>

void enter();

void check_in();

void inquire();

void check_out();

void initial_room();

using namespace std;

int i=0;

struct Room

{

	int number;

	int floor;

	int state;

};

class Customer

{

	char name[10],ID[19];

	int  room_number;

	int  change;

public:

	Customer()

	{

		cout<<"请您输入顾客的姓名\n";

		cin>>name;

		cout<<"请您输入顾客的身份证号码\n";

		cin>>ID;

		change=0;

	}

	void set_name(char *_name){strcpy(name,_name);}

	void set_ID(char *_ID){strcpy(ID,_ID);}

	void set_room_number(int n){room_number=n;}

	char *get_name(){return name;}

	char *get_ID(){return ID;}

	int  get_room_number(){return room_number;}

	~Customer()

	{

		cout<<"该顾客退房成功!"<<endl;

	}

};

Room room[80];

Customer *customer[80];

int main()

{

	char choice='1';

	initial_room();

	while(choice=='1')

	{

		enter();

		cout<<endl;

		cout<<"继续使用本系统请按\"1\",退出请按\"2\"!  ";

		cin>>choice;

		cout<<endl;

	}

}

//系统入口

void enter()

{

	int kind_of_service;

	while(1)

	{

	cout<<"请选择服务类别:订房、入住、退房还是查询? \n";

	cout<<" 1->查询  2->入住  3->退房  4->退出:  ";

	cin>>kind_of_service;

	if((kind_of_service<=4) && (kind_of_service>=1))

	{

		switch(kind_of_service)

		{

		case 1: inquire();

		break;

		case 2: check_in();

		break;

		case 3: check_out();

		break;

		case 4: exit(0);

		break;

		}

	}

	else

	{

		cout<<"您的输入有误，请重试!\n";

		continue;

	}

	}

}

//入住登记

void check_in()

{

	char name1[10],id1[19];

	customer[i]=new Customer;

	int room_floor;

	cout<<"请您选择预定房间的楼层:\n";

	cout<<"1.一楼\n2.二楼\n3.三楼\n4.四楼\n";

	cin>>room_floor;

	switch(room_floor)

	{

	int n;

	case 1:

	for(n=0;n<20;n++)

	{

		if(room[n].state==0)

		{

			cout<<"入住房间号码为: "<<room[n].number<<endl;

			room[n].state=1;

			customer[i]->set_room_number(room[n].number);

			break;

		}

	}

	break;

	case 2:

	for(n=20;n<40;n++)

	{

		if(room[n].state==0)

		{

			cout<<"入住房间号码为: "<<room[n].number<<endl;

			room[n].state=1;

			customer[i]->set_room_number(room[n].number);

			break;

		}

	}

	break;

	case 3:

   	for(n=40;n<60;n++)

	{

		if(room[n].state==0)

		{

			cout<<"入住房间号码为: "<<room[n].number<<endl;

			room[n].state=1;

			customer[i]->set_room_number(room[n].number);

			break;

		}

	}

	break;

	case 4:

	for(n=60;n<80;n++)

	{

		if(room[n].state==0)

		{

		cout<<"入住房间号码为: "<<room[n].number<<endl;

		room[n].state=1;

		customer[i]->set_room_number(room[n].number);

		break;

		}

	}

	break;

	}

	i++;

}

//退房结算

void check_out()

{

	char name2[10],id2[19];

	int room_number;

	cout<<"请输入要退房的顾客姓名和身份证号码:\n";

	cin>>name2>>id2;

	for(int j=0;j<i;j++)

	{

		if((strcmp(customer[j]->get_name(),name2)==0)&&(strcmp(customer[j]->get_ID(),id2)==0))

		{

			room_number=customer[j]->get_room_number();

		}

		cout<<endl;

   		cout<<"是否确定退房,请按1: ";

		char account;

		cin>>account;

		if(account=='1')

		{

			for(int k=0;k<80;k++)

			{

				if(room[k].number==customer[j]->get_room_number())

				room[k].state=0;

			}

			i--;

			for(;j<i;j++)

			{

				customer[j]=customer[j+1];

			}

			delete customer[i];

		}	

	}

}

//信息查询

void inquire()

{

	int j,k=0;

	cout<<endl;

	cout<<"下列房间还没人预订，也没人入住："<<endl;

	for(j=0;j<80;j++)

	{

		if(room[j].state==0)

		{

			if(k%10==0) cout<<endl;

			cout<<room[j].number<<'\t';

			k++;

		}

	}

	k=0;

	cout<<endl;

	cout<<"下列房间有人入住："<<endl;

	for(j=0;j<80;j++)

	{

		if(room[j].state==1)

		{

			if(k%10==0) cout<<endl;

			cout<<room[j].number<<'\t';

			k++;

		}

	}

	cout<<endl;

}

//房间信息初始化

void initial_room()

{

	int j,k=101;

	for(j=0;j<20;j++)

	{

		room[j].number=k++;

		room[j].floor=1;

		room[j].state=0;	

	}

	k=201;

	for(j=20;j<40;j++)

	{

		room[j].number=k++;

		room[j].floor=2;

		room[j].state=0;

	}

	k=301;

	for(j=40;j<60;j++)

	{

		room[j].number=k++;

		room[j].floor=3;

		room[j].state=0;

	}

	k=401;

	for(j=60;j<80;j++)

	{

		room[j].number=k++;

		room[j].floor=4;

		room[j].state=0;

	}

}