#include #include using namespace std;struct student{string name;int num;int age;char sex;};int main( ){student stud[3];int i;ifstream infile("F:\\stud.dat",ios::binary);if(!infile){cerr

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#include#includeusingnamespacestd;structstudent{stringname;intnum;intage;charsex;};intmain(){student

#include #include using namespace std;struct student{string name;int num;int age;char sex;};int main( ){student stud[3];int i;ifstream infile("F:\\stud.dat",ios::binary);if(!infile){cerr
#include
#include
using namespace std;
struct student
{string name;
int num;
int age;
char sex;
};
int main( )
{student stud[3];
int i;
ifstream infile("F:\\stud.dat",ios::binary);
if(!infile)
{cerr

#include #include using namespace std;struct student{string name;int num;int age;char sex;};int main( ){student stud[3];int i;ifstream infile("F:\\stud.dat",ios::binary);if(!infile){cerr
#include
#include
#include //加入这行
using namespace std;
如果没有包含的话,cout不支持string类型的数据.

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