Just execute python crawler.py http://start-url-to-crawl
Specify options in config.ini:
; start url for crawler
starturl=http://pic.kdslife.com/
; regexes for links and image urls
linkregex=http://pic.kdslife.com/content_.*.html
imgregex=http://img.club.pchome.net/.*.jpg
; integer>=1, larger politeness means slower crawling
; but also less likely to be denied service
politeness=3
; the directory to store the downloaded images
imgdir=E:/kds/
; the min size of images that you want to download
minwidth=200
minheight=200
