agv_ros_ws/server/launch/Map_saver.launch

<launch>
    <!-- 保存雷达扫描的地图，需要时调用这个launch文件 -->
    <arg name="filename" value="$(find slam_karto)/map/chejian_local1_0.1" />
    <node name="map_save" pkg="map_server" type="map_saver" args="-f $(arg filename)" />
</launch>