删除文件结束 [英] Delete End of File

问题描述

举例来说，如果我叫WriteFile的一个文件的末尾，后来我想删除写入的字节，我怎么能做到这一点？我一定要读文件的内容到缓冲区中，重新创建该文件，并写入所需的字节数，或者是有一个更简单的方法？

For instance if I called WriteFile to the end of a file, and later I wanted to delete the written bytes, how could I do this? Do I have to read the file's contents into a buffer, re-create the file, and write the desired bytes, or is there an easier way?

推荐答案

的寻求你想从截断的文件位置（如果你不是已经在那里），然后调用恰当地命名的 SetEndOfFile（）函数

Seek to the file position you want to truncate from (if you're not already there), then call the aptly-named SetEndOfFile() function.

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