Microsoft.VisualBasic.FileIO.FileSystem.CopyDirectory(@"E:/current", @"E:/10g upgrade0000");
Microsoft.VisualBasic.FileIO.FileSystem.DeleteDirectory(@"E:/10g upgrade0000",Microsoft.VisualBasic.FileIO.DeleteDirectoryOption.DeleteAllContents);
Microsoft.VisualBasic.FileIO.FileSystem.CopyDirectory(@"E:/current", @"E:/10g upgrade0000");
Microsoft.VisualBasic.FileIO.FileSystem.DeleteDirectory(@"E:/10g upgrade0000",Microsoft.VisualBasic.FileIO.DeleteDirectoryOption.DeleteAllContents);