如何使用C ++在％appdata％中创建文件 [英] How to create files in %appdata% with c++

问题描述

我需要在AppData中创建文件夹的帮助。
假设我想在％appdata％中创建一个名为 MyFolder的文件夹，该文件夹具有文本文件test.txt
我尝试使用< fstream> 并执行此操作；

I need help creating a Folder in AppData. Lets say I want to create a Folder in %appdata% called "MyFolder", which has the text file test.txt I tried to use <fstream> and do this;

ofstream file("%appdata%\MyFolder\test.txt");

但是它不起作用。

推荐答案

％appdata％之类的东西是特定于操作系统的，而Standard C ++没有直接的方式来处理它们。您必须编写代码来解析文件路径，并从环境中提取诸如％appdata％之类的值，或者使用非标准函数打开文件（如果存在的话）。

Things like %appdata% are OS specific, and Standard C++ has no direct means of dealing with them. You will have to write code to parse the file path, and extract values like %appdata% from the environment, or alternatively use non-standard functions to open the file, should such exist.

PS这也行不通，因为 \转引号，改为 \\。

P.S. It also wouldn't work because "\" escapes the quotes, do "\\" instead.

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