如何找到路徑的父目錄？

Question

我如何獲得一個目錄的父，例如：你想

string upDir = GetOneLvlUp(@"C:\AAA\BBB\CCC\DDD\"); 

Output: C:\AAA\BBB\CCC\ 

Answer 1

upDir = Directory.GetParent(path).FullName; 

Answer 2

一切都在目錄類：

http://msdn.microsoft.com/en-us/library/system.io.directory.aspx

尤其的getParent：

http://msdn.microsoft.com/en-us/library/system.io.directory.getparent.aspx

Answer 3

string path = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location); 
string parentDir = Directory.GetParent(path).FullName;