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Re:把 凸包的各条边 平行移动（往外）到与钉子（圆）相切，就可以得到结论了。In Reply To:为什么算出多边形的周长 在加上一个钉子的周长就是结果了？ Posted by:gucun4848 at 2008-07-20 10:45:35 Followed by: Post your reply here: |
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