基于我的Snack.cpp,Snack头文件,MiniVend头文件& miniVend.cpp文件,我试图将我的Snack私有成员 - 价格移动到我的MiniVend.cpp文件中以生成金额*价格以返回总值在我的机器中的项目。我如何从另一个班级获得价格?我的miniVend.cpp的如何将私有成员变量传递给另一个类?
部分文件
double miniVend::valueOfSnacks()
{
return //// I don't know how to get snacks price in here? I need to access snacks & getSnackPrice.
}
miniVend头
#ifndef MINIVEND
#define MINIVEND
#include <string>
#include "VendSlot.h"
#include "Snack.h"
using std::string;
class miniVend
{
public:
miniVend(VendSlot, VendSlot, VendSlot, VendSlot, double); //constructor
int numEmptySlots();
double valueOfSnacks();
//void buySnack(int);
double getMoney();
~miniVend(); //desructor
private:
VendSlot vendslot1; //declare all the vending slots.
VendSlot vendslot2; //declare all the vending slots.
VendSlot vendslot3; //declare all the vending slots.
VendSlot vendslot4; //declare all the vending slots.
double moneyInMachine; //money in the machine
};
#endif // !MINIVEND
Snack.cpp
#include "Snack.h"
#include <iostream>
#include <string>
using std::endl;
using std::string;
using std::cout;
using std::cin;
Snack::Snack() //default constructor
{
nameOfSnack = "bottled water";
snackPrice = 1.75;
numOfCalories = 0;
}
Snack::Snack(string name, double price, int cals)
{
nameOfSnack = name;
snackPrice = price;
numOfCalories = cals;
}
Snack::~Snack()
{
}
string Snack::getNameOfSnack()
{
return nameOfSnack;
}
double Snack::getSnackPrice()
{
return snackPrice;
}
int Snack::getNumOfCalories()
{
return numOfCalories;
}
Snack.h file
#ifndef SNACK_CPP
#define SNACK_CPP
#include <string>
using std::string;
class Snack
{
private:
string nameOfSnack;
double snackPrice;
int numOfCalories;
public:
Snack(); //default constructor
Snack(string name, double price, int cals); //overload constructor
~Snack(); //destructor
//Accessor functions
string getNameOfSnack(); //returns name of snack
double getSnackPrice(); //returns the price of the snack
int getNumOfCalories(); //returns number of calories of snack
};
#endif // !SNACK_CPP
你叫'getSnackPrice()'的零食很明显? – immibis
虽然我需要从miniVend调用。我需要从我的miniVend课程中确定总价值。 – Timk10
返回私人日期的引用,但这真的很糟糕。 – CroCo