/// <summary>
        /// 双击用户列表事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void UsersList_MouseDoubleClick(object sender, MouseEventArgs e)
        {
            int index = UsersList.IndexFromPoint(e.Location);

            if (index != ListBox.NoMatches)
            {
                ShowPath_win pathInfo = new ShowPath_win(UsersList.SelectedIndex, DelUserList);
                pathInfo.ShowDialog();
            }
        }