파일 입출력 Exam

//헤더파일

#ifndef _KGS_H_

#define _KGS_H_

#include <iostream>

#include <string>

#include <fstream>

#include <iomanip>

#define  MAX 50

using namespace std;

typedef struct  

{

string name;

int score[3];

int sum;

double aver;

}Student;

#else

#endif

//메인

#include "Data.h"

int _tmain(int argc, _TCHAR* argv[])

{

char fn[]="kgs.txt";

Student mStudent[MAX];

fstream fp;

int i,len =0;

fp.open(fn,ios::in);

if (fp.fail())

{

return 0;

}

i =0;

while (!fp.eof())

{

fp>>mStudent[i].name>>mStudent[i].score[0]>>mStudent[i].score[1]>>mStudent[i].score[2];

i++;

}

len = i-1;

for (i = 0;i<len;i++)

{

mStudent[i].sum = mStudent[i].score[0]+mStudent[i].score[1]+mStudent[i].score[2];

mStudent[i].aver=mStudent[i].sum/3.0;

}

for (i=0;i<len;i++)

{

cout<<mStudent[i].name<<" "<<setw(3)<<mStudent[i].score[0];

cout<<setw(3)<<" "<<mStudent[i].score[1]<<" ";

cout<<setw(3)<<mStudent[i].score[2]<<" ";

cout<<mStudent[i].sum<<" "<<mStudent[i].aver<<endl;

}

fp.close();

return 0;

}

==>kgs.txt  파일 내용

박진영 98 78 22

김진영 98 78 44

김소월 98 78 33

이인엉 98 78 32

발진발 98 78 54

머하냐 98 78 44

하하하 98 78 22

히히히 98 78 23

허어엉 98 78 100

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출력결과