bitset< > *b = new bitset<>();

bitset< > *c = new bitset<>();

ofstream out("I:\\test.dat",ios::binary);

out.write((char *)b,);

out.close();

ifstream in("I:\\test.dat", ios::binary);

for (int i = ; i < c[].size();)

{

    char temp = ;

    in.read(&temp, sizeof(char));

    for (int j = ; j < ; j++)

    {

        bool flag = (bool)((temp >> j) & );

        if (flag)

            c[].set(i + j);

    }

    i = i + ;

}

cout << "位图读取就位" << endl;

cout << c[] << endl;

in.close();

delete b;

delete c;