#include<iostream>#include<fstream>#include<string>using namespace std;struct student{ int num; string name; float score;};int main(){ student stud[5]; stud[0].num=1001;stud[0].name="Li";stud[0].score=85; stud[1].num=1002;stud[1].name="Fun";stud[1].score=97.5; stud[2].num=1004;stud[2].name="Wang";stud[2].score=54; stud[3].num=1006;stud[3].name="Tan";stud[3].score=76.5; stud[4].num=1010;stud[4].name="Ling";stud[4].score=96; fstream iofiles("c:\\stud.dat",ios::in|ios::out|ios::binary); if(!iofiles) { cout<<"open stud.dat error!"<<endl; exit(1); } return 0;}