目前我只会联合两个表,如:
var a = 【this.UserContentTable.Join(this.AreaTable】, _UserContentTable => _UserContentTable.AreaID, _AreaTable => _AreaTable.ID, (_UserContentTable, _AreaTable) => new AllAreaList_MapAreaID { AreaName = _AreaTable.AreaName, CategoryID = _UserContentTable.CategoryID, UserID = _UserContentTable.UserID, Title = _UserContentTable.Title, Date = _UserContentTable.Date, Content = _UserContentTable.Content });
EF 三表Join,三表Left Join : http://m.tnblog.net/xiuxin/article/details/2743
EF Core默认写法(或者说一楼我发的写法)就是lamdba写法对吧?
@PER10: 可以理解为:带 “=>” 符号的语句都是lamdba写法