这段代码是与资源相关的"深拷贝"，所以，运用大三法则应该自己实现assigment、copy ctor,这里的dtor的出现，就是个预兆. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://codingnow.com/pipermail/cpp/attachments/20060714/d1cd2ce8/attachment.html