小编Gro*_*ner的帖子

我是C++的新手,我有一个医生的载体.
我用以下代码添加了一位新医生:

void DoctorAdmin::setDoctor(std::string lastname, std::string forename,
 Person::Sex sex){

    //Create new doctor
    Doctor* doc = new Doctor(lastname, forename, sex);

    //insert at the end of the vector
    doctors.push_back(doc);
}

然后我想在控制台上显示他们的信息:

void DoctorAdmin::showDoctors(){

cout << "Doctors:" << endl;
cout << "Name" << "\t\t\t" << "Forename" << "\t\t\t" << "Sex" << endl;

for (vector<Doctor*>::iterator i = doctors.begin(); i != doctors.end(); i++){

    Doctors* doc = doctors.at(i);
    cout << doc->getName() << "\t\t\t" << doc->getForename() << "\t\t\t" 
         << doc->getSex() << endl;
}

这样做后,我得到两个错误:

E0304   No instance …