常量/NNMapMarkerN常量NMapMarker|ZOOM_STEP_RANGE_PORTNMapMarker|ZOOM_STEP_RANGE_PORTloading_screen/common/defines/graphic/00_graphics.txt:598Visible in anything "state" and lower定义loading_screen/common/defines/graphic/00_graphics.txt:598-1@location_zoomstep_max