从文件写入和读取

Question

我试图学习C ++，也许有人可以帮助我。 当我从文件中读取一切都没问题，但程序告诉我这个：

*_Pnext != 0; *_Pnext = (*_Pnext)->_Mynextiter)
_Pnext was 0x6BD9AC.

也许有人知道问题是什么。谢谢！

Struct.h

struct Autos {
    string model;
    string year;
    Autos *next_node;
};

int main(){
    Autos car;
    Autos carTemp;

Fill(car);
PrintAuto(car);

ofstream fout;// Write File
fout.open(path, fstream::out | fstream::binary);
fout.open(path,ostream::app); Добавляет данные

if (!fout.is_open()) {
    cout << "There is no file there!" << endl;
}
else {
    fout.write((char*)&car, sizeof(Autos));
}
fout.close();

ifstream fin;//Read file
fin.open(path, fstream::in ,fstream::binary);
if (!fin.is_open()) {
    cout << "There is no file" << endl;
}
else {
    fin.read((char*)&carTemp, sizeof(Autos));   
        PrintAuto(carTemp);
}
fin.close(); 

system("pause");
return 0;
}