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@A350_ti 我试过好久,最后采用话题消息转发才解决,说是硬编码了话题名称,不支持参数或重映射修改。下面是消息转发代码。
cmd_vel_relay = Node( package='topic_tools', executable='relay', name='cmd_vel_relay', arguments=['/cmd_vel', '/diff_drive_controller/cmd_vel_unstamped'], output='screen' )