航班信息查询系统的设计

代码如下，如有帮助，请采纳一下，谢谢。

#include <iostream>
#include <string>

using namespace std;
//定义航班最大数量
#define MAXNMB 20

//定义航班信息
struct HangbanInfo 
{
	char id[10];   //航班号
	char start[20];//起点站
	char end[20]; //终点站
	char bq[20];  //班期
	char qfsj[6];    //起飞时间
	char ddsj[6];    //到达时间
	char jx[10];  //机型
	int price;  //票价
};
//新增航班
void Add(HangbanInfo info[],int &n)
{
	HangbanInfo a;
	char c;
	system("cls");
	cout << "请输入航班号:" ;
	cin >> a.id;
	cout << "请输入起点站:";
	cin >> a.start;
	cout << "请输入终点站:";
	cin >> a.end;
	cout << "请输入班期:";
	cin >> a.bq;
	cout << "请输入起飞时间:";
	cin >> a.qfsj;
	cout << "请输入到达时间:";
	cin >> a.ddsj;
	cout << "请输入机型:";
	cin >> a.jx;
	cout << "请输入票价:";
	cin >> a.price;
	info[n] = a;
	n += 1;
	cout << "航班信息添加成功"<< endl;
	cout << "按任意键返回上一菜单..."<< endl;
	cin.get(c);
	cin.get(c);
}
//修改
void Mod(HangbanInfo info[],int n)
{
	int i;
	string tmp;
	HangbanInfo a;
	char c;
	
	system("cls");
	cout << "请输入您要修改的航班号信息:";
	cin >> tmp;
	for (i = 0;i<n;i++)
	{
		if( tmp.compare(info[i].id) == 0)
		{
			cout << "请输入航班号:" ;
			cin >> a.id;
			cout << "请输入起点站:";
			cin >> a.start;
			cout << "请输入终点站:";
			cin >> a.end;
			cout << "请输入班期:";
			cin >> a.bq;
			cout << "请输入起飞时间:";
			cin >> a.qfsj;
			cout << "请输入到达时间:";
			cin >> a.ddsj;
			cout << "请输入机型:";
			cin >> a.jx;
			cout << "请输入票价:";
			cin >> a.price;
			info[i] = a;
			cout << "修改成功!" <<endl;
			break;
		}
	}
	if(i==n)
		cout << "没有找到该航班信息"<< endl;
	cout << "按任意键返回上一菜单..."<< endl;
	cin.get(c);
	cin.get(c);
}

//删除
void DeleteHb(HangbanInfo info[],int &n)
{
	int i,j;
	string tmp;//[10] = {0};
	char c;
	system("cls");
	cout << "请输入您要删除的航班号:";
	cin >> tmp;
	for (i = 0;i<n;i++)
	{
		if(tmp.compare(info[i].id) == 0)
		{
			for (j = i;j<n-1;j++)
			{
				info[j] = info[j+1];
			}
			n = n-1;
			cout << "航班信息删除成功!"<<endl;
		}
	}
	if(i == n)
		cout << "没有找到该航班信息"<<endl;
	cout << "按任意键返回上一菜单..."<< endl;
	cin.get(c);
	cin.get(c);
}
//查找
void Find(HangbanInfo info[],int n)
{
	int i = 0;
	string tmp;
	char c;
	bool isfind = false;
	system("cls");
	cout << "请输入您要查找的航班信息:";
	cin >> tmp;
	for (i=0;i<n;i++)
	{
		if( (tmp.compare(info[i].id)==0) || (tmp.compare(info[i].start)==0) || (tmp.compare(info[i].end)==0) || (tmp.compare(info[i].qfsj)==0)  || (tmp.compare(info[i].ddsj)==0))
		{
			cout << "航班号:" << info[i].id <<endl;
			cout << "起点站:" << info[i].start <<endl;
			cout << "终点站:" << info[i].end << endl;
			cout << "班期:" << info[i].bq << endl;
			cout << "起飞时间:" <<info[i].qfsj << endl;
			cout << "到达时间:" <<info[i].ddsj <<endl;
			cout << "机型:" << info[i].jx << endl;
			cout << "票价:" << info[i].price << endl;
			isfind = true;
		}
	}
	if(!isfind)
		cout << "未找到符合信息的航班" << endl;
	cout << "按任意键返回上一菜单..."<< endl;
	cin.get(c);
	cin.get(c);
}

//排序
void Sort(HangbanInfo info[],int n)
{
	int i,j;
	int opt;
	HangbanInfo tmp;
	char c;
	string strtmp;
	system("cls");
	cout << "1.按照起飞时间排序   2.按照到达时间排序  3.按照价格排序" << endl;
	cin >> opt;
	for (i = 0; i<n-1;i++)
	{
		for (j = 0;j<n-1-i;j++)
		{
			if (opt == 1)
			{
				strtmp = info[j].qfsj;
				if(strtmp.compare(info[j+1].qfsj) > 0 )
				{
					tmp = info[j];
					info[j] = info[j+1];
					info[j+1] = tmp;
				}
			}else if (opt == 2)
			{
				strtmp = info[j].ddsj;
				if(strtmp.compare(info[j+1].ddsj) > 0 )
				{
					tmp = info[j];
					info[j] = info[j+1];
					info[j+1] = tmp;
				}
			}else
			{
				if( info[j].price >info[j+1].price  )
				{
					tmp = info[j];
					info[j] = info[j+1];
					info[j+1] = tmp;
				}
			}
		}
	}
	cout << "排序后航班信息:"<< endl;
	for (i = 0;i<n;i++)
	{
		cout << info[i].id << "\t" << info[i].start << "\t" << info[i].end << "\t" << info[i].bq << "\t";
		cout << info[i].qfsj << "\t"<< info[i].ddsj << "\t" << info[i].jx << "\t" << info[i].price << endl;
	}
	cout << "按任意键返回上一菜单..."<< endl;
	cin.get(c);
	cin.get(c);
}

int main()
{
	HangbanInfo info[MAXNMB];//存储所有航班信息
	int nmbHb = 0;   //航班实际数量
	int opt = 0;
	int bgo = 1;
	while(bgo)
	{
		system("cls");
		cout << "------------航班信息查询系统--------------"<<endl;
		cout << "|    1.新增航班                          |"<< endl;
		cout << "|    2.修改航班信息                      |"<< endl;
		cout << "|    3.删除航班                          |"<< endl;
		cout << "|    4.查询航班信息                      |"<< endl;
		cout << "|    5.航班信息排序                      |"<< endl;
		cout << "|    9.退出系统                          |"<< endl;
		cout << "------------------------------------------"<< endl;
		cin >> opt;
		switch(opt)
		{
		case 1:
			Add(info,nmbHb);
			break;
		case 2:
			Mod(info,nmbHb);
			break;
		case 3:
			DeleteHb(info,nmbHb);
			break;
		case 4:
			Find(info,nmbHb);
			break;
		case 5:
			Sort(info,nmbHb);
			break;
		case 9:
			bgo = 0;
			break;
		}
	}
	return 0;
}