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这个0似乎是边界？In Reply To:这个逻辑是反了吧？推出来一个数学表达式，反过来去推初始条件～～～～～荒谬～～，照那样负数也是有解的，只是负解罢了 Posted by:achilles at 2005-07-29 08:42:50 Followed by:
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