问答题

下面程序的功能是：将从键盘输入的10个整数以二进制方式写入文件d7.dat中，请填空。
#include
#include
int main(void)
{ FILE *fp;
  int i, j;
  if(( fp=fopen("d7.dat",   （1）   )) ==NULL )
    exit(0);
  for( i=0;i<10;i++)
  { scanf("%d",&j);
         （2）     ;
  }
        （3）     ;
}

【参考答案】

(1)
"wb" (2)
fwrite(&j,sizeof(int),1,fp) (3)
fclose( fp)

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