程序代码：

#include <stdio.h>
#include <stdlib.h>

#define SIZE 4

struct student
{
    char name[10];
    int age;
}stu[SIZE];

int main(void)
{
    FILE *fp;
    size_t i;

    for (i = 0; i < SIZE; i++)
        scanf("%s%d", stu[i].name, &stu[i].age);

    if ((fp = fopen("student_list", "wb")) == NULL)
    {
        printf("cannot open file\n");
        exit(0);
    }

    for (i = 0; i < SIZE; i++)
        fwrite(&stu[i], sizeof(stu[i]), 1, fp);

    system("pause");

    return 0;
}

程序代码：

#include <stdio.h>
#include <stdlib.h>

#define SIZE 4

struct student
{
    char name[10];
    int age;
}stu[SIZE];

int main(void)
{
    FILE *fp;
    size_t i;

    for (i = 0; i < SIZE; i++)
        scanf("%s%d", stu[i].name, &stu[i].age);

    if ((fp = fopen("student_list", "wb")) == NULL)
    {
        printf("cannot open file\n");
        exit(0);
    }

    for (i = 0; i < SIZE; i++)
        fprintf(fp, "%s%d\n", stu[i].name, stu[i].age);//这里的"\n"为什么没有作用

    system("pause");

    return 0;
}

程序代码：

#include <stdio.h>
#include <stdlib.h>

#define SIZE 4

struct student
{
    char name[10];
    int age;
}stu[SIZE];

int main(void)
{
    FILE *fp;
    size_t i;

    for (i = 0; i < SIZE; i++)
        scanf("%s%d", stu[i].name, &stu[i].age);

    if ((fp = fopen("student_list", "wb")) == NULL)
    {
        printf("cannot open file\n");
        exit(0);
    }

    for (i = 0; i < SIZE; i++)
        fprintf(fp, "%s%d\n", stu[i].name, stu[i].age);//这里的"\n"为什么没有作用

    system("pause");

    return 0;
}

[此贴子已经被作者于2019-1-11 19:31编辑过]