如何在.NET字符串中使用system \\ environment变量？

Question

I have path variable which I got from my appsettings:

var path="%TEMP%\myapplication\data";

I am trying to use it in Directory.CreateDirectory(path) method. But I got new folder in my application bin folder instead of C:\\Users\\Evgeny\\AppData\\Local\\Temp\\myapplication\\data .

Should I replace %TEMP% manually?

Answer 1

像这样使用System.Environment.ExpandEnvironmentVariables ：

String concretePath = Environment.ExpandEnvironmentVariables(@"%TEMP%\myapplication\data");