例13.15 將剛才以二進制形式存放在磁盤文件中的數據讀入內存并在顯示器上顯示。
#include <fstream>
using namespace std;
struct student
{string name;
 int num;
 int age;
 char sex;
};
int main( )
{student stud[3];
 int i;
 ifstream infile(″stud.dat″,ios::binary);
 if(!infile)
  {cerr<<″open error!″<<endl;
   abort( );
  }
  for(i=0;i<3;i++)
infile.read((char*)&stud[i],sizeof(stud[i]));
  infile.close( );
  for(i=0;i<3;i++)
   {cout<<″NO.″<<i+1<<endl;
    cout<<″name:″<<stud[i].name<<endl;
    cout<<″num:″<<stud[i].num<<endl;;
    cout<<″age:″<<stud[i].age<<endl;
    cout<<″sex:″<<stud[i].sex<<endl<<endl;
   }
  return 0;
 }