How can I get the car to move?

[chenti2x]

How can I get the car to move? Are you using the keyboard?
ubuntu16.04
What is displayed is a static picture, how does the car move?
thank you very much！

[TurtleZhong]

The car subscribe /cmd_vel topic, you can use
rosrun teleop_twist_keyboard teleop_twist_keyboard.py
to move the car.

[chenti2x]

非常感谢收到您的回复，实在不好意思，我是ros新手，请问，The car subscribe /cmd_vel topic，怎么订阅cmd_vel topic？添加在哪里？

再次感谢！