prog13.cpp

来自「C++语言程序设计题典」· C++ 代码 · 共 81 行

#include <iostream.h>
#include <string.h>
#define Max 20
class Station
{
protected:
	char from[Max];
	char to[Max];
public:
	Station()
	{
		strcpy(from,"");strcpy(to,"");
	}
	Station(char f[],char t[])
	{
		strcpy(from,f);
		strcpy(to,t);
	}
	void getdata()
	{
		cout << "输入起始站 终止站:";
		cin >> from >> to;
	}
	void disp()
	{
		cout << "从" << from << "站到" << to << "站";
	}
};
class Mile
{
protected:
	double mile;
public:
	Mile() { mile=0; }
	Mile(double m) { mile=m; }
	void getdata()
	{
		cout << "输入里程:";
		cin >> mile;
	}
	void disp()
	{
		cout << "是" << mile << "公里";
	}
};
class Price : public Station,public Mile
{
	double price;
public:
	Price():Station(),Mile()
	{
		price=0;
	}
	Price(char f[],char t[],double m):Station(f,t),Mile(m)
	{
		price=8+(int)((m-3+0.49)*2)*0.7;  
	}
	void getdata()
	{
		Station::getdata();
		Mile::getdata();
		price=8+(int)((mile-3+0.49)*2)*0.7;  
	}
	void disp()
	{
		cout << "   ";
		Station::disp();
		Mile::disp();
		cout << ",价格是" << price << "元" << endl;
	}
};
void main()
{
	Price A;
	A.getdata();
	Price B("关山口","中山公园",32.6);
	cout << "输出结果:" << endl;
	A.disp();
	B.disp();
}