#include <stdio.h>
#include <string.h>
#include <process.h>
typedef struct
{
char name[25];
int english, math;
float average;
}STUDENT;
int main()
{
STUDENT st;
FILE *fp;
if((fp=fopen ("d11-7.txt", "wb"))==NULL)
{
printf("Can't open file d11-7.txt");
exit(-1);
}
printf("Please type <enter key> for Name, if you finish input\n");
printf("Enter Name: ");
gets (st.name);
while(strlen (st.name)>0)
{
printf("Enter English score: ");
scanf("%d", &st.english);
printf("Enter mayt score: ");
scanf("%d", &st.math);
st.average =((float)st.english + st.math)/2;
fwrite (&st, sizeof(st), 1, fp);
if(ferror (fp))
{
perror ("Error: ");
fclose(fp);
exit(-1);//return (-1);
}
printf("\nPlease type <enter key> for Name, if you finish input\n");
printf("Enter Name: ");
fflush (stdin);
gets(st.name);
}
fclose(fp);
if((fp= fopen ("d11-7.txt", "rb"))==NULL)
{
printf("Can't open file d11-7.txt");
exit(-1);
}
printf("\nName English Math Average\n");
while(fread(&st, sizeof(st), 1, fp)==1)
{
printf("%s\t %d\t %d\t %7.2f\n", st.name, st.english, st.math, st.average);
}
fclose(fp);
return 0;
} |