#include <stdio.h>main(){ FILE *fp;int i , a[6]={1,2,3,4,5,6},k;fp=fopen("data.dat","w+");for (i=0;i<6;i++){fseek(fp,0L,0); fprintf(fp,"%d\n",a[i]);}rewind(fp);fscanf(fp,"%d",&k);fclose(fp);printf("%d\n",k);} 答案为什么是6