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在测距教程中，Bpix是摄像头中，球所占的像素（直径的像素），这个直径的像素是啥意思？一直弄不明白，求个详细一点的解释
@kidswong999 谢谢
测得物体的大小6.5cm，想要把6和5分开输出，怎么写？