c++ - C++ MS Visual Studio错误 “referenced in function public: void __thiscall …”

尝试在VS中运行C++项目时出现以下错误

我的main.cpp(ATM machine.cpp)

#include <iostream>
#include <fstream>
#include <string>
#include "Account.h"
using namespace std;

class options
{
    private:
        char user_chose;
        int id;
        int pass;

    public:

        void login()
        {
            // Get credentials
            cout << "Please enter your user id: ";
            cin >> id;
            cout << "Please enter your password: ";
            cin >> pass;

        }

        void quit()
        {
            cout << "quiting...";
        }

        void IntroMenu()
        {
            cout << "Please select an option from the menu below :" << endl;
            cout << "l -> Login" << endl;
            cout << "c -> Create New Account" << endl;
            cout << "q -> Quit" << endl;
            cout << "> ";
            cin >> user_chose;

            switch (user_chose)
            {
                case ('l'):
                case ('L'):
                    login();
                    break;

                case ('c'):
                case ('C'):

                    Account i;
                    i.createAccount();
                    break;

                case ('q'):
                case ('Q'):
                    quit();
                    break;

                default:
                {
                    cout << "\n***Invalid option***\n" << endl;
                    IntroMenu(); //Recall function
                }
            };
        };
};

int main()
{
    cout << "Hi!Welcome to the ATM Machine!" << endl;
    options start;
    start.IntroMenu();

    return 0;
}

我的 header (Account.h)

#ifndef ACCOUNT_H_INCLUDED
#define ACCOUNT_H_INCLUDED

class Account
{
    public:
        void createAccount();
};

#endif

(Account.cpp)

#include "Account.h"
using namespace std;

Account::createAccount();
void Account::createAccount()
{
    //Save account on database(txt file)

    cout << "\nAccount created successfully\n" << endl;
}

错误1



错误2



提前致谢!

最佳答案

在您的cpp文件中:

#include "Account.h"
using namespace std;


Account::createAccount(); // remove this


void Account::createAccount()
{
    cout << "\nAccount created successfully\n" << endl;
}

删除该行之后，您的程序应运行。

编辑

修复之后，它对我来说很好。

你可以尝试移动

#include <iostream>
#include <fstream>
#include <string>
using namespace std;

到Account.h并删除其他using namespace std;，仅在#include <Account.h>中保留main()。

这提示缺少库，因此也请检查Account类文件是否在项目根目录中。

如果那不能解决问题，请查看C++ compile error (LNK1120 and LNK2019) with Visual Studio。

关于c++ - C++ MS Visual Studio错误 “referenced in function public: void __thiscall …”，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/60737164/