太抽象啦，有具体一点的吗？或者把例子中怎么用稀疏矩阵，稍微解释下啊 我是菜鸟 ；-（ -------------- next part -------------- An HTML attachment was scrubbed... URL: http://codingnow.com/pipermail/cpp/attachments/20080426/0e978327/attachment.html