摘要：项目右键 管理NuGet 程序包 ; 添加EntityFramework ef框架 编写BookDB类;继承DbContext Book类 配置文件添加 <connectionStrings> <add name="BookDB" connectionString="server=.;uid=sa; 阅读全文

摘要：LibraryEntities db = new LibraryEntities(); private void btnSelect_Click(object sender, EventArgs e) { //查询语句 List book = db.BookInfo.ToList(); ... 阅读全文