有命令行工具，可以用来 mirror 网站，但是要加上这两个参数以及其它你认为所需要的选项。
-m
--mirror
Turn on options suitable for mirroring. This option
turns on recursion and time-stamping, sets infinite
recursion depth and keeps FTP directory listings. It
is currently equivalent to -r -N -l inf -nr.
-k
--convert-links
After the download is complete, convert the links in
the document to make them suitable for local viewing.
This affects not only the visible hyperlinks, but any
part of the document that links to external content,
such as embedded images, links to style sheets, hyper-
links to non-HTML content, etc.
但是这是Unix/Linux下的命令行工具，官方并没有windows版本，但是你可以参考一下这里：
http://www.qtm.net/~twegscheid/wget.html
