1 #include<iostream>
2 #include<fstream>
3 #include<string>
4 using namespace std;
5
6 struct SalaryInfo {
7 string id;
8 double salary;
9 };
10 int main() {
11 SalaryInfo employee1 = { "S600",6000.0 };
12 ofstream os("usersfile", ios_base::out | ios_base::binary);//usersfile在当前工作目录下，如果不存在则自动生成
13 os.write(reinterpret_cast<char*>(&employee1), sizeof(employee1));
14 os.close();
15 ifstream is("usersfile", ios_base::in | ios_base::binary);
16 if (is) {
17 SalaryInfo employee2;
18 is.read(reinterpret_cast<char*>(&employee2), sizeof(employee2));
19 cout << employee2.id << " " << employee2.salary;
20 }
21 else
22 cout << "ERROR:Cannot open file 'usersfile'." << endl;
23 }
