用std :: string打开文件 [英] Opening a file with std::string

问题描述

这应该是一个相当琐碎的问题.我正在尝试使用std :: string(或std :: wstring)打开ofstream，并且在不进行麻烦的转换的情况下无法正常工作.

This should be a fairly trivial problem. I'm trying to open an ofstream using a std::string (or std::wstring) and having problems getting this to work without a messy conversion.

std::string path = ".../file.txt";

ofstream output;

output.open(path);

理想情况下，如果有更好的方法，我不想手动转换它或使用c样式的char指针?

Ideally I don't want to have to convert this by hand or involve c-style char pointers if there's a nicer way of doing this?

推荐答案

在路径字符串中，使用两个点而不是三个点.

In the path string, use two dots instead of three.

另外，您可以在字符串上使用'c_str()'方法来获取基础的C字符串.

Also you may use 'c_str()' method on string to get the underlying C string.

output.open(path.c_str());

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