系统要求方法都返回 Result 结果,通常我们会如此定义一个 Result 1 public class Result<T> 2 { 3 public virtual int Code { get; set; } 4 5 public virtual T Data { get; set; } 6 7 public virtual string Message { get; set; } 8 } 9 10 public class Result : Result<object> 1
在ef之前创建了一个数据库,然后删除后,再用ef创建,失败! USE [master] GO /****** Object: Database [DBname] ******/ ALTER DATABASE [MyNews] SET SINGLE_USER WITH ROLLBACK IMMEDIATE ALTER DATABASE [MyNews] SET SINGLE_USER WITH NO_WAIT DROP DATABASE [MyNews] GO
1. 问题描述 docker-machine create --driver virtualbox myvm1 安装完 virtualbox 后,无法创建. 输出内容为: Running pre-create checks... Error with pre-create check: "We support Virtualbox starting with version 5. Your VirtualBox install is "WARNING: The vboxdrv kern