void ShowAllStudent()
{
for(int i=0;i<NumofStudent;i++)
{
ShowStudent(StudentArray[i]);
}
}
void ReadDate()
{
int Studentlenth=0;
Studentlenth+=sizeof(StudentArray[0].Num);
Studentlenth+=sizeof(StudentArray[0].Name);
Studentlenth+=sizeof(StudentArray[0].Age);
Studentlenth+=sizeof(StudentArray[0].Profession);
Studentlenth+=sizeof(StudentArray[0].Grade);
fstream f ;
f.open("F:/Student.dat",ios::in,0);
int i=0;
while(!f.eof())
{
f.read((char *)&StudentArray[i].Num,sizeof(int));
f.read((char *)StudentArray[i].Name,sizeof(StudentArray[i].Name));
f.read((char *)&StudentArray[i].Age,sizeof(int));
f.read((char *)StudentArray[i].Profession,sizeof(StudentArray[i].Profession));
f.read((char *)&StudentArray[i].Grade,sizeof(double));
i++;
}
NumofStudent=i-1;
cout<<"NumofStudent="<<NumofStudent<<endl;
f.close();
}
错误
:\Program Files (x86)\Microsoft Visual Studio\MyProjects\学籍管理\1.cpp(68) : error C2065: 'ShowStudent' : undeclared identifier