有以下程序:
#include<stdio.h>
main()
FILE *fp;int a[10]=1,2,3,0,0,i;
fp=fopen("d2.dat","wb");
fwrite(a,sizeof(int),5,fp);
fwrite(a,sizeof(int),5,fp);
fclose(fp);
fp=fopen("d2.dat","rb");
fread(a,sizeof(int),10,fp);
fclose(fp);
for(i=0;i<10;i++)printf("%d,",a[i]);
程序的运行结果是( )。
A) 1,2,3,0,0,0,0,0,0,0,
B) 1,2,3,1,2,3,0,0,0,0,
C) 123,0,0,0,0,123,0,0,0,0,
D) 1,2,3,0,0,1,2,3,0,0,