使用头文件和头文件中的原型 - C2228错误

Question

在头文件中 const int NUM_LETTERS = 10;  char letters [10] = {'A'，'B'，'C'，'D'，'E'，'F'，'G'，'H'，'I'，'J'};

在Main_Idea.cpp NL.Letters（NL.letters，NL.NUM_LETTERS）中;

我正在尝试使用game.displayResults（.....）;

我有2个头文件，一个工作，另一个不起作用。第一个头文件正确运行，我相信它，因为它们在原型函数中没有数据。当我运行第二个Header文件时，它在void displayResults（int gCount，int wCount1，int wCount2）中有数据，以及如何放入game.displayResults（.....）;在Main_Idea.cpp中谢谢！

第一个我将只包含部分代码：这是在头文件中。

    void EnterB();
    double residential();
    double business();

这是在cpp

中

    Billing B;
    Billing* PtrB = &B;

    B.EnterB();
   PtrB->EnterB();

有效。下一个没有。

这是头文件

#ifndef RPS_H_h
#define RPS_H_h

enum objectType{Rock, Paper, Scissors};  //Put in class?


class RPS_H
{
private:
//enum objectType{Rock, Paper, Scissors};
int gameCount = 0;
int winCount1 = 0;
int winCount2 = 0;
int gameWinner;
char response;
char selection1;
char selection2;
objectType play1;
objectType play2;

  public:
RPS_H();
void Enter();
void displayRules();
objectType retrievePlay(char selection);
bool validSelection(char selection);
void convertEnum(objectType object);
objectType winningObject(objectType play1, objectType play2);
void gameResult(objectType play1, objectType play2, int& winner);
void displayResults(int gCount, int wCount1, int wCount2);  //, int wCount1, int wCount2

~RPS_H();
 };

 #endif // !RPS_H_h

RPS_H.cpp

 #include "RPS_H.h"
  #include <iostream>

  using namespace std;


  RPS_H::RPS_H()
 {
 }

  void RPS_H::Enter()
   {
displayRules();
cout << "Enter either a Y or y to play the game: ";
cin >> response;
cout << endl;

while (response == 'Y' || 'y')

{
    cout << "Player 1 enter your choice: ";
    cin >> selection1;
    cout << endl;

    cout << "Player 2 enter your choice: ";
    cin >> selection2;
    cout << endl;

    if (validSelection(selection1) && validSelection(selection2))
    {
        play1 = retrievePlay(selection1);
        play2 = retrievePlay(selection2);
        gameCount++;
        gameResult(play1, play2, gameWinner);
        if (gameWinner == 1)
            winCount1++;
        else
            if (gameWinner == 2)
                winCount2++;
    }
    cout << "Enter Y/y to play the game again: ";
    cin >> response;
    cout << endl;
}

displayResults(gameCount, winCount1, winCount2);
   }

    void RPS_H::displayRules()
   {
cout << "Welcome to ...";
    }

    bool RPS_H::validSelection(char selection)  // change
    {
switch (selection)
{
case 'R': case 'r':
case 'P': case 'p':
case 'S': case 's': return true;
default:
    return false;
}
   }

      objectType RPS_H::retrievePlay(char selection)
    {
objectType object;
switch (selection)
{
case 'R': case 'r': object = Rock;
case 'P': case 'p': object = Paper;
case 'S': case 's': object = Scissors;

}
return object;
   }

    void RPS_H::convertEnum(objectType object)
    {
switch (object)
{
case Rock:
    break;
case Paper:
    break;
case Scissors:
    break;

}
  }

     objectType RPS_H::winningObject(objectType play1, objectType play2)
   {
if ((play1 == Rock && play2 == Scissors)
    || (play2 == Rock && play1 == Scissors))
    return Rock;
else
    if((play1 == Rock && play2 == Paper)
    || (play2 == Rock && play1 == Paper))
    return Paper;
else
    return Scissors;
    }


      void RPS_H::gameResult(objectType play1, objectType play2, int& winner)
    {
objectType winnerObject;

if (play1 == play2)
{
    winner = 0;
    cout << "Both players selected ";
    convertEnum(play1);
    cout << ". This game is a tie." << endl;

}
else
{
    winnerObject = winningObject(play1, play2);

    cout << "Player 1 selected ";
    convertEnum(play1);
    cout << "Player 2 selected ";
    convertEnum(play2);
    cout << ". ";

    if (play1 == winnerObject)
        winner = 1;
    else
        if (play2 == winnerObject)
            winner = 2;
    cout << "Player " << winner << " wins this game." << endl;
}
    }

      void RPS_H::displayResults(int gCount, int wCount1, int wCount2)  //,        int wCount1, int wCount2
         {
cout << "The total number of players: " << gCount << endl;
cout << "The number number of player 1: " << wCount1 << endl;
cout << "The number number of player 2: " << wCount2 << endl;
    }
   RPS_H::~RPS_H()
    {
    }

Main_Idea.cpp

  #include <iostream>
  #include <iomanip>

  #include <ctime>
  #include <iostream>
  #include <iomanip>

  #include <cstdlib>

  #include "RPS_H.h"
  #include "Billing.h"
  using namespace std;

  int main()
   {
RPS_H game;
RPS_H* PtrG = &game;
cout << "Hello World\n";
game.displayResults(game.displayResults.gameWinner, game.displayResults.winCount1, game.displayResults.winCount2);
//PtrG->gameResult(&PtrG->gameResult->gameWinner,&PtrG->gameResult->winCount1,&PtrG->gameResult->winCount2);
Billing B;
Billing* PtrB = &B;

B.EnterB();
cout << "\nAlso\n";
PtrB->EnterB();
cout << "\nAnother function maybe\n\n";
B.EnterS();
//B.EnterS(B.EnterS.square);
//B.square(y);
cout << "And this way\n";
PtrB->EnterS();
cin.get();
cin.get();
cin.get();
return 0;
   }