winform中用setting儲存使用者名和密碼

 Settings.Default.IsSave = cbSavePw.Checked;

                if (cbSavePw.Checked)

                {

                    Settings.Default.UserName = tbUserName.Text.Trim();

                    Settings.Default.Password = tbPassword.Text.Trim();

                }

                else

                    Settings.Default.UserName = string.Empty;

                    Settings.Default.Password = string.Empty;

                Settings.Default.Save();