常量/NNMapMarkerN常量NMapMarker|ZOOM_STEP_RANGE_FORTNMapMarker|ZOOM_STEP_RANGE_FORTloading_screen/common/defines/graphic/00_graphics.txt:575Only visible in the "province" zoom level定义loading_screen/common/defines/graphic/00_graphics.txt:575@city_zoomstep_min@province_zoomstep_max