回复：Great！sorry, it was great

来源: ohiotogo 于 2005-03-09 20:17:29 [] [旧帖] [给我悄悄话] 阅读数 : (107 bytes)
回答: 回复：平面上的点（1） 由 jinjing 于 2005-03-09 11:08:37

sorry.... jinjing is right...when u select origin not on the lines, jinjing's solution is the best one.

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