c++获取windows当前用户根目录

要获取Windows当前用户的根目录，可以使用下面的C++代码：

#include <iostream>
#include <string>
#include <cstdlib>

std::string getHomeDirectory() {
    char* homePath = getenv("USERPROFILE");
    if (homePath == nullptr) {
        homePath = getenv("HOMEDRIVE");
        std::string homePathStr(homePath);
        homePath = getenv("HOMEPATH");
        homePathStr += homePath;
        return homePathStr;
    }
    return std::string(homePath);
}

int main() {
    std::string homeDirectory = getHomeDirectory();
    std::cout << "Windows当前用户的根目录: " << homeDirectory << std::endl;
    return 0;
}

这段代码使用了C++的getenv函数来获取环境变量USERPROFILE或HOMEDRIVE和HOMEPATH的值，它们都表示当前用户的根目录。如果USERPROFILE不可用，则使用HOMEDRIVE和HOMEPATH拼接而成。最后将获取到的根目录打印出来。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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