VARIANT variant_tmp;  
    COleSafeArray  safearray_tmp;  
    LONG len,k;  
    BYTE rxdata[20]; //设置 BYTE 数组
    CString strtemp;
    int chicunshumu,chicunweizhi;
    CFile wenjian;
    wenjian.Open("aa.txt",CFile::modeCreate|CFile::modeWrite)
    {
        for(chicunshumu=0;chicunshumu<10;chicunshumu++)
        {
            for(chicunweizhi=0;chicunweizhi<3;chicunweizhi++)
                {
                variant_tmp = m_CaiYangChuanKou.GetInput(); //读缓冲区
                safearray_tmp=variant_tmp;       //VARIANT型变量转换为 ColeSafeArray型变量
                len=safearray_tmp.GetOneDimSize(); //得到有效数据长度
                for(k=0;k<len;k++)   
                    safearray_tmp.GetElement(&k,rxdata+k);//转换为 BYTE 型数组
                    ChiCun[chicunshumu][chicunweizhi]=atof((char*)(rxdata));
                    m_EDIT1=atof((char*)(rxdata)); //加入接收编辑框对应字符串
               
                    double i=m_EDIT1;
                    wenjian.Write(&i,sizeof(double));
                }
        }
    }
 wenjian.close();