程序代码：

   
   由于ADerivative计算量比较大，计算一次后写入文本。打算以后直接从文本读出来使用。

//写入文本
    FILE *fp0;
    fp0=fopen("ADerivative.bin","wb+");
    fwrite(ADerivative,sizeof(float),m_receiver*m_tnum*m_GridnumX*m_GridnumZ,fp0);

//读出数据
    FILE *fp1;
    fp1=fopen("ADerivative.bin","wb+");
    fread(ADerivative1,sizeof(float),m_receiver*m_tnum*m_GridnumX*m_GridnumZ,fp1);

然后直接使用ADerivative1   可是结果不对，求大神解答。