因此，我已经创建了这段代码，但是我很难分离文件。到目前为止，当我创建头文件时，它运行良好，但是当我为dctorType，patientType和billType创建.cpp文件时，它说未定义，头文件personType被重新定义。请帮助
#include <iostream>
#include <string>
using namespace std;
// Base class personType
class personType
{
public:
void print()const;
//Function to output the first name and last name
//in the form firstName lastName.
void setName(string first, string last);
string getFirstName()const;
string getLastName()const;
personType(string first = "", string last = "");
//Constructor
//Sets firstName and lastName according to the parameters.
//The default values of the parameters are null strings.
//Postcondition: firstName = first; lastName = last
private:
string firstName; //variable to store the first name
string lastName; //variable to store the last name
};
void personType::print() const
{
cout << "Person FirstName="<<firstName << " LastName=" << lastName<< endl;
}
void personType::setName(string first, string last)
{
firstName = first;
lastName = last;
}
string personType::getFirstName() const
{
return firstName;
}
string personType::getLastName() const
{
return lastName;
}
//constructor
personType::personType(string first, string last)
{
firstName = first;
lastName = last;
}
// --------------------Start your code from here
class doctorType: public personType
{
public:
// doctorType(string first,string last,string special);
void print()const;
void setSpeciality(string special);
string getSpeciality() const;
doctorType(string first, string last, string special);
//private:
string firstName; //variable to store the first name
string lastName;
string speciality;
};
void doctorType::print() const
{
cout << "Doctor FirstName="<<firstName << " LastName=" << lastName<< " Speciality="<<speciality<<endl;
}
void doctorType::setSpeciality(string special)
{
speciality = special;
}
string doctorType::getSpeciality() const
{
return speciality;
}
doctorType::doctorType(string first, string last,string special)
{
firstName = first;
lastName = last;
speciality = special;
}
class patientType:public personType
{
public:
patientType(string first="", string last = "", int id1=0,int age1=0,int dob1=0);
void setId(int id1);
void setAge(int age1);
void setDob(int dob1);
int getId() const;
int getAge() const;
int getDob() const;
void print() const;
//private:
string firstName;
string lastName;
int id;
int age;
int dob;
};
patientType::patientType(string first,string last,int id1,int age1,int dob1)
{
firstName = first;
lastName=last;
id = id1;
age = age1;
dob = dob1;
}
void patientType::setId(int id1)
{
id = id1;
}
int patientType::getId() const
{
return id;
}
void patientType::setAge(int age1)
{
age = age1;
}
int patientType::getAge() const
{
return age;
}
void patientType::setDob(int dob1)
{
dob=dob1;
}
int patientType::getDob() const
{
return dob;
}
void patientType::print() const
{
cout << "Patient FirstName="<<firstName << " LastName=" << lastName<< " Id="<<id<<" Age="<<age<<" Dob="<<dob<<endl;
}
class billType
{
public:
billType(doctorType &d,patientType &p);
void setCharge(double chrg);
double getCharge() const;
void print() const;
private:
double charge;
string patient_first;
string patient_last;
int patient_Id;
int patient_Age;
int patient_Dob;
string doctor_first;
string doctor_last;
string doctor_speciality;
};
billType::billType(doctorType &d, patientType &p)
{
//double charge;
patient_first = p.firstName;
patient_last = p.lastName;
patient_Id = p.id;
patient_Age = p.age;
patient_Dob = p.dob;
doctor_first = d.firstName;
doctor_last = d.lastName;
doctor_speciality = d.speciality;
}
void billType::setCharge(double chrg)
{
charge = chrg;
}
double billType::getCharge() const
{
return charge;
}
void billType::print() const
{
cout << "Patient FirstName="<<patient_first << " LastName=" << patient_last<< " Id="<<patient_Id<<" Age="<<patient_Age<<" Dob="<<patient_Dob<<endl;
cout << "patient's Doctor FirstName="<<doctor_first << " LastName=" << doctor_last<< " Speciality="<<doctor_speciality<<endl;
cout<<"Hospital charges="<<charge<<endl;
}
//--------------------driver program
int main()
{
personType person1("Lisa", "Regan");
doctorType doctor1("Sarah", "Conner", "Dentist");
patientType patient1("Sam", "Fire",200,100,1916);
billType b1(doctor1, patient1);
b1.setCharge(250.66);
cout << "<personType> Printing...\n";
person1.print();
cout << endl;
cout << "<doctorType> Printing...\n";
doctor1.print();
cout << endl;
cout << "<patientType> Printing...\n";
patient1.print();
cout << endl;
cout << "<billType> Printing...\n";
b1.print();
cout << endl;
return 0;
}
答案 0 :(得分：0)
personType标头如下：
#ifndef PERSONTYPE_H
#define PERSONTYPE_H
#include <string>
using namespace std;
class personType
{
public:
void print()const;
//Function to output the first name and last name
////in the form firstName lastName.
void setName(string first, string last);
string getFirstName()const;
string getLastName()const;
personType(string first = "", string last = "");
////Constructor
////Sets firstName and lastName according to the parameters.
////The default values of the parameters are null strings.
//Postcondition: firstName = first; lastName = last
string firstName; //variable to store the first name
string lastName; //variable to store the last name
};
#endif
我所做的唯一更改是将firstName和lastName公开，而不是私有。 （并添加了标头后卫，这非常重要。）
我不会显示每个文件，因为它们几乎相同，我将让您完成工作。 这是BillType.h：
#ifndef BILLTYPE_H
#define BILLTYPE_H
#include <string>
#include "patientType.h"
#include "doctorType.h"
class billType
{
public:
billType(doctorType &d,patientType &p);
void setCharge(double charge);
double getCharge() const;
void print() const;
private:
double charge;
string patient_first;
string patient_last;
int patient_Id;
int patient_Age;
int patient_Dob;
string doctor_first;
string doctor_last;
string doctor_speciality;
};
#endif
由于我们同时包括了患者和医生，又包括了人，因此我们只需要在驱动程序中包含billType.h。 该驱动程序几乎与您现在拥有的驱动程序相同。在驱动程序的方法“ billType”中，我建议您使用getter而不是直接调用变量。我还建议您在构造函数中使用初始化器列表。
要记住的重要一点是，如果要包括自定义头文件，请使用#include "filename.h"。