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追球小车在找不到小球原地旋转是为什么速度特别慢
因为代码里就是这么写的。如果没有找到球，那么原地旋转寻找四周的球。
else: car.run(10,-10)
速度慢是因为慢速可以更好的找球。当然你可以修改代码，让他速度更快。比如修改为car.run(20,-20)