Qt中自定义文件格式，读写二进制文件的串行化类的使用

http://peipengshuai.blog.163.com/blog/static/19012266201071653752316/

Qt中自定义文件格式，读写二进制文件的串行化类的使用

读写二进制文件的串行化类的使用，具体代码如下：
定义一个结构体：   
struct PatientInfor
    {
        QString m_strID;//病人唯一ID号 
        QString m_strHospitalID;//病例号（医院编号）
        QString m_strName;//病人姓名 
        QString m_strSurName;//病人姓
        QString m_strFirstName;//病人名
        QString m_strPY;//病人姓名全拼
        int m_Sex;
        int m_intAge;//病人年龄
        QDate m_DateCreateDate;//病人档案建立日期
        QDate m_DatePatientHospitalDate;//住院日期
        QString m_strAddress;//住址
        QString m_strZip;//邮编
        QString m_strTele;//电话
        QString m_strCreatorID;//创建用户编号
        int m_DeleteStateFlage;
        QString m_strRemark;//备注
    };
写二进制文件：   
void wrietFile(QString strTemp)//strTemp写入文件名
{
         QFile fileWrite(strTemp);
         fileWrite.open(QIODevice::WriteOnly);
         QDataStream  writeDataStream(&fileWrite);
         PatientInfor *patientInfor = new PatientInfor ();
        writeDataStream<<patientInfor->m_strID<<patientInfor->m_strHospitalID<<patientInfor->m_strName<<patientInfor->m_strSurName<<patientInfor->m_strFirstName<<patientInfor->m_strPY<<patientInfor->m_Sex<<patientInfor->m_intAge<<patientInfor->m_DateCreateDate<<patientInfor->m_DatePatientHospitalDate<<patientInfor->m_strAddress<<patientInfor->m_strZip<<patientInfor->m_strTele<<patientInfor->m_strCreatorID<<patientInfor->m_DeleteStateFlage<<patientInfor->m_strRemark;
        fileWrite.close();
        delete patientInfor;
        patientInfor = NULL;
  }
  读二进制文件： 
void readFile(QString strTemp) //strTemp 读文件名
  {
      QFile fileRead(strTemp);
      fileRead.open(QIODevice::ReadOnly);
      QDataStream  readDataStream(&fileRead);
      PatientInfor *readPatientInfor = new PatientInfor();
     readDataStream>>readPatientInfor->m_strID>>readPatientInfor->m_strHospitalID>>readPatientInfor->m_strName>>readPatientInfor->m_strSurName>>readPatientInfor->m_strFirstName>>readPatientInfor->m_strPY>>readPatientInfor->m_Sex>>readPatientInfor->m_intAge>>readPatientInfor->m_DateCreateDate>>readPatientInfor->m_DatePatientHopitalDate>>readPatientInfor->m_strAddress>>readPatientInfor->m_strZip>>patientInfor->m_strTele>>readPatientInfor->m_strCreatorID>>readPatientInfor->m_DeleteStateFlage>>readPatientInfor->m_strRemark;
      fileRead.close();
      delete readPatientInfor;
}
注意：QFile 和QDataStream 类联合使用实现了二进制文件读写的串行化，对读写类型的支持也比较多，对自定义文件的读写提供了极大的方便，但是在读写时要严格保持读写的一致性。