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这个测距的代码,是在用小球在固好的距离确定好K值后,就可以用来测量小球的距离,但是随着小球的移动,他的中直径就不正确了对吗?,也可以用来测量固定好距离处的其他物体的长宽,但是不能用来测量移动该物体后的距离对吗?
没听懂,就是因为近大远小,所以可以估计距离。