EF-Lamdba

 一丶基本语法

var userList=db.set<table>().where(c=>c.id=="001"&&c.userName.Contains("张")).Tolist();

join连接查询

 var newList = table1.Join(table2, u => u.id, p => p.userId, (u, p) => new
                  {
                      UserName = u.userName,

                  }).ToList();
                newList.ForEach(a => Console.WriteLine("姓名：{0}", a.UserName));

分组

var sUserListGroup = db.Sys_UserInfor.GroupBy(u => u.userSex).ToList();