C++重载成员函数错误

Question

你好，我正在制作一个包含 3 个类的程序，当我使用成员初始化列表时，我收到一条错误消息“没有重载函数“people::people”的实例与指定类型匹配：

MAIN.cpp

    #include <iostream>
    #include "conio.h"
    #include <string>
    #include "birthday.h"
    #include "people.h"
    using namespace std;

    void main(){
        birthday birthObj (30, 06, 1987);

        people me("The King",birthObj);
        _getch();
    }

BIRTHDAY.h

    #pragma once
    class birthday
    {
    public:
birthday(int d, int m, int y);
        void printdate();
    private:
        int month;
        int day;
        int year;
    };

BIRTHDAY.cpp

    #include "birthday.h"
    #include <iostream>
    #include "conio.h"
    #include <string>

    using namespace std;

    birthday::birthday(int d, int m, int y)
    {
        month = m;
        day = d;
        year = y;
    }
    void birthday::printdate()
    {
        cout << day << "/" << month << "/" << year;
    }

PEOPLE .h

    #pragma once
    #include <iostream>
    #include "conio.h"
    #include <string>
    #include "birthday.h"
    using namespace std;

    class people
    {
    public:
        people(string x, birthday bo);
        void printInfo();
    private:
        string name;
        birthday dateOfBirth;
    };

人物.cpp

    #include "people.h"
    #include <iostream>
    #include "conio.h"
    #include <string>
    #include "birthday.h"
    using namespace std;

    people::people()
    : name(x), dateOfBirth(bo)
    {
    }

    void people::printInfo()
    {
        cout << name << " was born on ";
        dateOfBirth.printdate(); 
    }

Answer 1

People.cpp 应该是：

people::people(string x, birthday bo) : name(x), dateOfBirth(bo) { } 

Answer 2

您尚未实现 people(string x,birthday bo); 构造函数。在您的 PEOPLE.cpp 中，更改

people::people()
    : name(x), dateOfBirth(bo)

为

people::people(string x, birthday bo)
    : name(x), dateOfBirth(bo)

Answer 3

PEOPLE.cpp 中的构造函数有错误的签名：

它应该是：

people::people(string x, birthday bo)

而不是：

people::people()

Answer 4

 people::people()
: name(x), dateOfBirth(bo)
{
}

您忘记了对该构造函数的参数。

Answer 5

人物声明和定义不匹配！