c++ - con.txt 和 C++

Question

#include <fstream>

int _tmain(int argc, _TCHAR* argv[])
{
   std::ofstream F("con.txt", std::ios::out);

   F << "some text in con.txt";

   F.close();

   return 0;
}

输出:

some text in con.txt

如果我将“con.txt”替换为“something.txt”，则 something.txt 将包含字符串“some text in something.txt。”

我认为文件 con.txt 与控制台文件绑定(bind)...第一种情况真实发生了什么？

Answer 1

CON 是 Windows 平台上的保留设备名称。它不应该用作文件名，即使有扩展名也是如此。

来自documentation :

Do not use the following reserved device names for the name of a file: CON, PRN, AUX, NUL, COM1, COM2, COM3, COM4, COM5, COM6, COM7, COM8, COM9, LPT1, LPT2, LPT3, LPT4, LPT5, LPT6, LPT7, LPT8, and LPT9. Also avoid these names followed immediately by an extension; for example, NUL.txt is not recommended.