C# path操作

FolderBrowserDialog OP_Path = new FolderBrowserDialog();
OP_Path.ShowNewFolderButton = true;
OP_Path.RootFolder = Environment.SpecialFolder.MyComputer;
OP_Path.Description = "选择保存文件路径";
if (OP_Path.ShowDialog() == DialogResult.OK)
CBox_OPath.Text = OP_Path.SelectedPath;
CBox_OPath.Text = Environment.CurrentDirectory;
CBox_OPath.Items.Add(CBox_OPath.Text);
s_path = CBox_OPath.Text.ToString() + "\\" + DateTime.Now.ToString(("yyyy-MM-01")) + "'" + DateTime.Now.ToString(("hh-mm-ss"));
Directory.CreateDirectory(s_path);