C# Lambda表达式 两个list取交集 做筛选

public IList<Markers> getEngineerByCenterPoint(float latitude, float longitude) { MapAddress mapAddress = new MapAddress(latitude, longitude); List<Markers> markers = (List<Markers>)getEngineerRecent(); List<MapAddress> maps = (List<MapAddress>)MapHelper.GetPointsByDistance(mapAddress,200000, markers); //return markers.Where(a => maps.Exists(t => a.latitude.Equals(t.lat))).ToList(); 方法1 return markers.Where(a => maps.Where(t => a.latitude == t.lat).Any()).ToList(); // 方法2 //return markers.Where(a => !maps.Where(t => a.latitude == t.lat).Any()).ToList(); //除去交集数据，加 '!' }