/// <summary>
        /// 获取用户的角色名称         /// </summary>
        /// <param name="userId">用户主键</param>
        /// <returns>角色名称列表</returns>
        protected string GetUserRoleNames(string userId)         {             string roleName = string.Empty;             UserService userService = new UserService();             var entityList = userService.GetUserRoleList(BaseSystemInfo.UserInfo, userId);             var list = entityList.Where(entity => entity.Enabled == 1 && entity.IsVisible == 1).OrderBy(entity => entity.SortCode);             foreach (var role in list)             {                 roleName += "(" + role.RealName + ") ";             }             System.Console.Write("i:" + userId.ToString() + ", ");             return roleName;         }          private void GetUserRoleName()         {             for (int i = 0; i < 100; i++)             {                 GetUserRoleNames(i.ToString());             }         }          private void btnCreateUser_Click(object sender, EventArgs e)         {             // 控制按钮状态
            this.btnCreateUser.Enabled = false;              for (int i = 0; i < 50; i++)             {                 // 并发启动多线程
                Thread thread = new Thread(new ThreadStart(GetUserRoleName));                 thread.Start();             }              this.btnCreateUser.Enabled = true;         }