关于#C语言#文件的问题

Question

#include <stdio.h>


int main()
{
    int k, n, i, a[6] = { 1,2,3,4,5,6 };
    FILE* fp;
    fp = fopen("d2.dat", "wb");
    for (i = 0; i < 6; i++) fprintf(fp, "%d\n", a[i]);
    fclose(fp);
    fp = fopen("d2.dat", "rb");
    for (i = 0; i < 3; i++) fscanf(fp, "%d%d", &k, &n);
    fclose(fp);
    printf("%d,%d\n", k, n);
    
    return 0;
}

为什么不是 1，2？

Answer 1

逻辑问题，并非是换行符问题，已作修改

#include <stdio.h>
int main()
{
    int k, n, i, a[6] = { 1, 2, 3, 4, 5, 6 };
    FILE *fp;
    fp = fopen("d2.dat", "wb");
    for (i = 0; i < 6; i++)
        fprintf(fp, "%d\n", a[i]);
    fclose(fp);
    fp = fopen("d2.dat", "rb");
    /* for (i = 0; i < 2; i++) */ fscanf(fp, "%d%d", &k, &n);
    fclose(fp);
    printf("%d,%d\n", k, n);
    return 0;
}