在追加模式下创建文件 [英] create Files in appending mode

问题描述

如何在追加模式下创建文件.我需要重用同一文件
只要应用程序正常运行，请帮我找到它.

谢谢
Mithun Nair

Hi,
How can I create Files in appending mode. I need to reuse the same file
whenever the application works.Help me to find it.

Thanks
Mithun Nair

推荐答案

使用CFile类并使用标志CFile::modeNoTruncate.

在这里查看更多信息:
http://msdn.microsoft.com/en-us/library/cz0a83sb％28v = vs.80％29.aspx [ ^ ]

祝你好运！

Use the CFile class and use the flag CFile::modeNoTruncate.

Have a look here for more info:
http://msdn.microsoft.com/en-us/library/cz0a83sb%28v=vs.80%29.aspx[^]

Good luck!

来自标准C ++库的文件流也是一种选择.
它们不需要 MFC (需要CFile)，并且它们不是特定于操作系统的(CreateFile和SetFilePointerEx是Windows特定的API).

您可以使用 std :: ofstream [ std :: ofstream :: open [

The file streams from The Standard C++ Library are also an option.
They don''t require MFC (CFile does) and they are not OS specific (CreateFile and SetFilePointerEx are Windows specific APIs).

You can use std::ofstream[^].
See the documentation for std::ofstream::open[^] and. You can use something like:

std::ofstream myfilebin, myfiletxt;

// For binary files
myfilebin.open ("example.bin", std::ios::out | std::ios::app | std::ios::binary);

// For text files
myfiletxt.open ("example.txt", std::ios::out | std::ios::app);

有关其他详细信息，请参考此 [

For additional details refer to this[^] article.

您还可以使用CreateFile [ SetFilePointerEx [ ^ ] Windows API函数.

问候
Espen Harlinn

You can also use the CreateFile[^] and the SetFilePointerEx[^] Windows API functions.

Regards
Espen Harlinn

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