C#环境变量问题

Question

Please help, I have an error:

File.Copy(@"%USERPROFILE%\AppData\Local\Google\Chrome\UserData\Default\Bookmarks", @"%userprofile%\Music\Bookmarks", true);

C# can't see this path :C

Answer 1

You should use Environment.ExpandEnvironmentVariables before using windows variable:

var path1 = @"%USERPROFILE%\AppData\Local\Google\Chrome\UserData\Default\Bookmarks";
var filePath1 = Environment.ExpandEnvironmentVariables(path1);

var path2 = @"%userprofile%\Music\Bookmarks";
var filePath2 = Environment.ExpandEnvironmentVariables(path2);

File.Copy(filePath1, filePath2, true);