Symbian 文件读写及读写流的方法

核心提示：{...private:// DataTUint8 iX1;TUint16 iX2;TUint32 iX3;TInt8 iY1;TInt16 iY2;TInt32 iY3;TReal32 iZ1TReal64 iZ2;};void CMyObject::ExternalizeL(RWriteStream& aStrea

{

...

private:

// Data

TUint8 iX1;

TUint16 iX2;

TUint32 iX3;

TInt8 iY1;

TInt16 iY2;

TInt32 iY3;

TReal32 iZ1

TReal64 iZ2;

};

void CMyObject::ExternalizeL(RWriteStream& aStream)

{

aStream.WriteUint8L( iX1 );

aStream.WriteUint16L( iX2 );

aStream.WriteUint32L( iX3 );

aStream.WriteInt8L( iY1 );

aStream.WriteInt16L( iY2 );

aStream.WriteInt32L( iY3 );

aStream.WriteReal32( iZ1 );

aStream.WriteReal64( iZ2 );

}

void CMyObject::InternalizeL(RReadStream& aStream)

{

iX1 = aStream.ReadUint8L();

iX2 = aStream.ReadUint16L();

iX3 = aStream.ReadUint32L();

iY1 = aStream.ReadInt8L();

iY2 = aStream.ReadInt16L();

iY3 = aStream.ReadInt32L();

iZ1 = aStream.ReadReal32();

iZ2 = aStream.ReadReal64();

}

CMyObject iObject;

...

RFs& fs = CCoeEnv::Static()->FsSession();

RFileReadStream readStream;

RFileWriteStream writeStream;

writeStream.Create(fs, KTxtFileName, EFileWrite);

writeStream.PushL();

iObject.ExternalizeL(writeStream);

writeStream.CommitL();

writeStream.Pop();

writeStream.Release();

readStream.Open(fs, KTxtFileName, EFileRead));

readStream.PushL();

iObject.InternalizeL(readStream);

readStream.Pop();

readStream.Release();

c. 删除文件

RFs::Delete(): 删除指定的文件，该文件不能处于打开状态，并且它不能是系统或只读文件

RFs::RmDir():删除指定的目录，目录名必须以"\"结尾，该目录必须为空，且不能为根目录

Symbian文件操作整理

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