C#文件加密方法汇总

                        };
                        InvokeUtil.Invoke(this, invokeDelegate);
                        DateTime t1 = DateTime.Now;
                        DirectoryEncrypt.EncryptDirectory(folderBrowserDialog1.SelectedPath, txtPwd.Text, RefreshDirProgress, RefreshFileProgress);
                        DateTime t2 = DateTime.Now;
                        string t = t2.Subtract(t1).TotalSeconds.ToString("0.00");
                        if (MessageBox.Show("加密成功，耗时" + t + "秒", "提示") == DialogResult.OK)
                        {
                            invokeDelegate = delegate()
                            {
                                EnableBtns();
                            };
                            InvokeUtil.Invoke(this, invokeDelegate);
                        }
                    }
                    catch (Exception ex)
                    {