二进制文件的读写全部

fstream& Personal::writeToFile(fstream& out)
{
out.write(SSN,SSNLen);
out.write(name,nameLen);
out.write(city,cityLen);
out.write((char*)(&year),sizeof(year));
out.write((char*)(&salary),sizeof(salary));
return out;
}

fstream& Personal::readFromFile(fstream& fin)
{
fin.read(SSN,SSNLen);
fin.read(name,nameLen);
fin.read(city,cityLen);
fin>>year;
fin>>salary;
return fin;
}

friend fstream& operator<<(fstream& fout, Personal& pr)
{
return pr.writeToFile(fout);
}
friend fstream& operator>>(fstream& fin, Personal& pr)
{
return pr.readFromFile(fin);
}