错误 C2228：“.printStats”的左侧必须有类/结构/联合

Question

所以我最近决定重新学习编程并使用 C++。尝试制作冒险者课程，但我似乎遇到了一些麻烦。这是我的文件：

Adventurer.h：

#ifndef __Adventurer_H_INCLUDED__   //if Adventurer.h hasn't been included yet...
#define __Adventurer_H_INCLUDED__   //#define this so the compiler knows it has been included

class Adventurer
{

    private:

        int hp, mp, str, agi, magic, armour;

    public:

        Adventurer(){}
        void printStats();

}

#endif

Adventurer.cpp：

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



Adventurer::Adventurer()
{

    hp = 50;
    mp = 25;
    str = 5;
    agi = 5;
    magic = 5;
    armour = 5;
}

void Adventurer::printStats()
{

    cout << "HP = " << hp << "\n\n";
    cout << "MP = " << mp << "\n\n";
    cout << "str = " << str << "\n\n";
    cout << "agi = " << agi << "\n\n";
    cout << "magic = " << magic << "\n\n";
    cout << "armour = " << armour << "\n\n";
}

RPG_Game.cpp：

// my first program in C++
#include <iostream>
#include <string>
#include "Adventurer.h"

;using namespace std;

int main()
{
    cout << "Hello Adventurer! What is your name? \n";
    string advName;
    cin >> advName;
    cout << "\nYour name is " << advName << "!";
    Adventurer *adv = new Adventurer();
    cout << adv.printStats();
    delete adv;
    system(pause);
}

Answer 1

让我们看看你的代码中的错误

首先，在您的 Adventurer.h 中，在类后面加上一个分号 (;)。

接下来，在同一堂课中，你有

Adventurer(){}

把这个改成

Adventurer();

然后，在你的 RPG_Game.cpp 中，改变

cout << adv.printStats();

到

adv->printStats() ;

使用指针时，需要使用->而不是.

最后，

system(pause);

应该是

system( "pause" );

现在，尝试运行您的代码。

另外，您可能会发现 this 很有帮助。