计算功能原子笔

by paikia on Wednesday, Jul 19, 2006

神奇的原子笔，竟然能这样辨认数目并且进行运算功能。我还是觉得是个雏形而已，娱乐性多过实际性。除非买来个小朋友来考试作弊的，不然还是不能取代计算机。

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