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Chapter 4:Processes -- Low-Level I/O 文件低级I/O

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《Windows via C/C++》第4章 Processes 里讲进程产生的过程时,说到,在调用入口点函数之前,启动函数要完成一些工作……其他的就不说了,突然发现一个名词: low-level input/output routines ,这种奇怪的东西还是第一次见,果然百度了一下,找到这个地址,里面有详细介绍:http://technet.microsoft.com/zh-cn/library/40bbyw78(v=vs.90).aspx 。   

    很明显,与正常的流I/O(fprintf, fscanf, fwrite, fread, etc)相比,低级I/O(_write, _open, _read)没有缓冲区,也没有格式化数据。

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