步行路径:
1.启用walkbot。
2.启用或round_start后,walkbot将选择要步行到的最近点。
3. If loop is enabled walkbot will walk like that : 1 -> 2 -> 3 -> 1 -> ... ( points in order you put them )
4. If it is disabled it will walk like that : 1 -> 2 -> 3 -> 2 -> 1 -> 2 -> ... ( points in order you put them )