/// <summary>
        /// 清除用户权限范围
        /// </summary>
        /// <param name="userInfo">用户</param>
        /// <param name="userId">主键</param>
        /// <param name="permissionCode">权限编码</param>
        /// <returns>数据表</returns>
        public int ClearUserPermissionScope(BaseUserInfo userInfo, string userId, string permissionCode)
        {
            var result = 0;

            var parameter = ServiceInfo.Create(userInfo, MethodBase.GetCurrentMethod());

            ServiceUtil.ProcessUserCenterWriteDb(userInfo, parameter, (dbHelper) =>
            {
                var tableName = userInfo.SystemCode + "PermissionScope";
                var manager   = new BaseUserScopeManager(dbHelper, userInfo, tableName);
                result        = manager.ClearUserPermissionScope(userInfo.SystemCode, userId, permissionCode);
            });

            return(result);
        }