求一个文件指针的题目和程序！！三四十行代码就可以了！！

/*把文件dezip.txt里面的字符,按照对应的数字写到read.txt中*/
#include<stdio.h>
#include<string.h>

int main()
{ FILE *fp1,*fp2;
int i;
fp1=fopen("dezip.txt","rb");
fp2=fopen("read.txt","wb");
while(i=fgetc(fp1),i!=-1)
{ fprintf(fp2,"%d ",i);
}
fclose(fp1);
fclose(fp2);
return 0;
}