擅长:python、mysql、java
<p>根据定义,浮点运算并非完全100%精确,因为值用分数表示。看看关于<a href="http://docs.python.org/tutorial/floatingpoint.html" rel="nofollow">Python float limitations</a>的文章,以及另一篇<a href="http://download.oracle.com/docs/cd/E19957-01/806-3568/ncg_goldberg.html" rel="nofollow">more general article</a>。</p>