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谢谢你的提示，测试例子好像都对了，还是Runtime Error，郁闷。。。

Posted by duduniao85 at 2008-01-15 20:11:58 on Problem 1001
In Reply To:double的精度当然是非常低的呀，用BigDecimal吧（无限精度），再转换为string就好了 Posted by:ecjtubaowp at 2008-01-12 10:49:02 
我用的是java 1.5中BigDecimal 新增的toPlainString()方法。。。
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