有以下程序:
# include <stdio.h>
main()
FILE *fp; int i, a[6]=1, 2, 3, 4, 5, 6;
fp=fopen("d2.dat", "w+");
for=(i=0; i<6; i++) fpintf(fp, "%d\n", a[i]);
rewind(fp);
for(i=0; i<6; i++) fscanf(fp, "%d", &a[5-i]);
fclose(fp);
for(i=0; i<6; i++) printf("%d, ", a[i]);
程序运行后的输出结果是( )。
A.4, 5, 6, 1, 2, 3,
B.1, 2, 3, 3, 2, 1,
C.1, 2, 3, 4, 5, 6,
D.6, 5, 4, 3, 2, 1,