point作为SpatialJoin工具的参数出错未解决

            ESRI.ArcGIS.AnalysisTools.SpatialJoin spatialJoin = new ESRI.ArcGIS.AnalysisTools.SpatialJoin();
            spatialJoin.target_features = pointnow;
            spatialJoin.match_option = "INTERSECTS";
            spatialJoin.join_features = @"E:\Export_Output_4.shp";
            spatialJoin.search_radius = 0.1;
            spatialJoin.out_feature_class = @"E:\Export_Output_1hl.shp";