求解C语言程序

发布网友发布时间：2023-06-25 04:20

共1个回答

热心网友时间：2023-08-01 03:23

#include <stdio.h>

#dfine N (20)

#define PATH "student.dat"

typedef struct student

{

long num;

char name[10];

int age;

char sex;

char speciality[20];

char address[40];

}STUDENT;

STUDENT a[N];

void WritetoFile(STUDENT stu[],int n)

{

int i;

FILE fp=fopen(PATH,"w");

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

scanf("%ld %s %d %c %s %s",&stu[i].num,stu[i].name,&stu[i].age,&stu[i].sex

,stu[i].speciality,stu[i].address);

fclose(fp);

}

void WritetoFile(long minnum,long maxnum)

{

int i;

FILE fp=fopen(PATH,"r");

for(i=minnum;i<=maxnum;++i)

printf("%ld %s %d %c %s %s\n",stu[i].num,stu[i].name,stu[i].age,stu[i].sex

,stu[i].speciality,stu[i].address);

fclose(fp);

}

int main()

{

int max,min;

WritetoFile(a,N);

scanf("%d%d",&min,&max);

ReadfromFile(min,max);

return 0;

}