30）有以下程序 #include main() {FILE *fp; int i,a[6]={l,2,3,4,5,6}; fp=fopen("d3.dat","w+b"); fwrite(a,sizeof(int),6,fp); fseek(fp,sizeof(int)*3,SEEK_SET);/*该语句使读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,

其他試題