有以下程序:
#include<stdio.h>
main()
FILE * fp; int i, a[6]=1, 2, 3, 4, 5, 6;
fp=fopen("d3. dat", "w+b");
fwrite(a, sizeof(int), 6, fp);
fseek(fp, sizeof(int) *3, SEEK_SEr); /*该语句使渎文件的位置指针从文件头向后移动3个int型数据*/
Fread(a, sizeof(int), 3, fp); 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, 4, 5, 6, B) 1, 2, 3, 4, 5, 6, C) 4, 5, 6, 1, 2, 3, D) 6, 5, 4, 3, 2, 1,