01.cpp

飞机订座系统

//:01.cpp
//飞机订座系统
#include<iostream>
#include<cstdlib>
using namespace std;

//本系统可以一次订多张票，输入几个一就订几张吸烟舱座位，输入几个二就订几张非吸烟舱座位
int main()
{
	int seat[10]={0};//新建数组存放座位号，并初始化为0，代表座位没有订购
	char i,a,b;
	int k,j;
	while(1)//while循环用于多次订票
	{
	cout<<"Please type 1 for \"Smoking\""<<endl;
	cout<<"Please type 2 for \"Nonsmoking\""<<endl;
	cin>>i;
choose:
	switch(i)//switch用于选择订吸烟舱还是非吸烟舱
	{
	case '1'://选择吸烟舱
		for(j=0;j<5;j++)//吸烟舱的座位号是1~5，for循环依次检验该座位是否被预定
		{
			if(seat[j]==0)
			{
				seat[j]=1;//该座位没有被预定，就订该座位，并赋值1表示该座已订
				k=j+1;//k表示预定的座位号
				break;//订完一个座后跳出循环
			}
		}
		if(j==5)//吸烟舱已满
		{
			cout<<"The seat for smoking is full,whether to book the nonsmoking"<<endl;
			cout<<"Please type 'Y' for \"Yes\""<<endl;
			cout<<"Please type 'N' for \"No\""<<endl;//询问是否订购非吸烟舱
			char a;
			cin>>a;
			if('y'==a)//订购非吸烟舱，并跳回switch的case ‘2’中
			{
				i='2';
				goto choose;
			}
			else//不订购非吸烟舱，跳到程序底部
			{
				cout<<"Next flight leaves in 3 hours"<<endl;
      			goto bottom;
			}
		}
		break;
	case '2':
		for(j=5;j<10;j++)//非吸烟舱的座位号是6~10，for循环依次检验该座位是否被预定
		{
			if(seat[j]==0)
			{
				seat[j]=1;//预定该座位
				k=j+1;
				break;
			}
		}
		if(j==10)//非吸烟舱已满
		{
			cout<<"The seat for nonsmoking is full,whether to book the smoking"<<endl;
			cout<<"Please type 'y' for \"Yes\""<<endl;
			cout<<"Please type 'n' for \"No\""<<endl;//询问是否订购吸烟舱
            char b;
			cin>>b;
			if('y'==b)//订购吸烟舱，并跳回switch的case ‘1’中
			{
				i='1';
				goto choose;
			}
			else//不订购吸烟舱，跳到程序底部
			{
				cout<<"Next flight leaves in 3 hours"<<endl;
                goto bottom;
			}
		}
		break;
	default://输入不是1与2，就返回重新选择
		cout<<"Please input 1 or 2"<<endl;
		char c;
		cin>>c;
		i=c;
		goto choose;
	}
	cout<<"your boarding check:"<<endl;
	cout<<"seat number:"<<k<<endl;//输出座位号
	if(k>=1&&k<=5)
		cout<<"smoking"<<endl;//输出吸烟舱
	if(k>=6&&k<=10)
		cout<<"nonsmoking"<<endl;//输出非吸烟舱
bottom:;
	  for(int sum=0,int d=0;d<10;d++)
		  sum=sum+seat[d];
	  if(sum==10)//如果座位已满，则退出程序
	  {
		  cout<<"There is no extra seat in this flight,please wait for the next"<<endl;
		  exit(0);
	  }
	}
}///:~