C#文件加密方法汇总

            if (folderBrowserDialog1.ShowDialog() == DialogResult.OK)
            {
                if (MessageBox.Show(string.Format("确定解密文件夹{0}？", folderBrowserDialog1.SelectedPath),
                    "提示", MessageBoxButtons.OKCancel) == DialogResult.Cancel)
                {
                    return;
                }

                Thread thread = new Thread(new ParameterizedThreadStart(delegate(object obj)
                {
                    try
                    {
                        InvokeDelegate invokeDelegate = delegate()
                        {
                            pbDir.Value = 0;
                            lblProgressDir.Text = "0%";
                            pbFile.Value = 0;
                            lblProgressFile.Text = "0%";
                            pbDir.Visible = true;
                            lblProgressFile.Visible = true;