# (4/4) 直線檢查Straight-line Check

* 只給出直線速度，檢查機器人是否直線行駛，輕微的偏差（- 1 或 2 度）是可以接受的，但不能超過 5 度。
* 相應地對齊輪子，以測試直線運動，建議在地板上畫線，以確保準確性。
* 直線移動機器人，並呼應 `/odom` 主題。

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