豆瓣电影主页上爬到了如下url：
| href=""http://movie.douban.com/subject/26289144/?from=showing"" |
| href=""http://movie.douban.com/subject/26289144/?from=showing"" |
| href=""http://movie.douban.com/subject/26289144/cinema/"" |
| href=""http://movie.douban.com/subject/25723907/?from=showing"" |
| href=""http://movie.douban.com/subject/25723907/?from=showing"" |
| href=""http://movie.douban.com/subject/25723907/cinema/"" |
| href=""http://movie.douban.com/subject/25778488/?from=showing"" |
| href=""http://movie.douban.com/subject/25778488/?from=showing"" |
| href=""http://movie.douban.com/subject/25778488/cinema/"" |
| href=""http://movie.douban.com/subject/26356871/?from=showing"" |
| href=""http://movie.douban.com/subject/26356871/?from=showing"" |
| href=""http://movie.douban.com/subject/26356871/cinema/"" |
| href=""http://movie.douban.com/subject/26373447/?from=showing"" |
| href=""http://movie.douban.com/subject/26373447/?from=showing"" |
| href=""http://movie.douban.com/subject/26373447/cinema/"" |
| href=""http://movie.douban.com/subject/25904357/?from=showing"" |
| href=""http://movie.douban.com/subject/25904357/?from=showing"" |
| href=""http://movie.douban.com/subject/25904357/cinema/"" |
| href=""http://movie.douban.com/subject/26344993/?from=showing"" |
| href=""http://movie.douban.com/subject/26344993/?from=showing"" |
| href=""http://movie.douban.com/subject/26344993/cinema/"" |
| href=""http://movie.douban.com/subject/25853727/?from=showing"" |
| href=""http://movie.douban.com/subject/25853727/?from=showing"" |
| href=""http://movie.douban.com/subject/25853727/cinema/"" |
| href=""http://movie.douban.com/subject/26365738/?from=showing"" |
| href=""http://movie.douban.com/subject/26365738/?from=showing"" |
| href=""http://movie.douban.com/subject/26365738/cinema/"" |
| href=""http://movie.douban.com/subject/21943062/?from=showing"" |
| href=""http://movie.douban.com/subject/21943062/?from=showing"" |
| href=""http://movie.douban.com/subject/21943062/cinema/"" |
| href=""http://movie.douban.com/subject/25895276/?from=showing"" |
| href=""http://movie.douban.com/subject/25895276/?from=showing"" |
| href=""http://movie.douban.com/subject/25895276/cinema/"" |
| href=""http://movie.douban.com/subject/26417725/?from=showing"" |
| href=""http://movie.douban.com/subject/26417725/?from=showing"" |
| href=""http://movie.douban.com/subject/26417725/cinema/"" |
| href=""http://movie.douban.com/subject/26382888/?from=showing"" |
| href=""http://movie.douban.com/subject/26382888/?from=showing"" |
| href=""http://movie.douban.com/subject/26382888/cinema/"" |
| href=""http://movie.douban.com/subject/25837175/?from=showing"" |
| href=""http://movie.douban.com/subject/25837175/?from=showing"" |
| href=""http://movie.douban.com/subject/25837175/cinema/"" |
| href=""http://movie.douban.com/subject/26289144/?from=reviews"" |
| href=""http://movie.douban.com/subject/26289144/?from=reviews"" |
| href=""http://movie.douban.com/subject/25778488/?from=reviews"" |
| href=""http://movie.douban.com/subject/25778488/?from=reviews"" |
| href=""http://movie.douban.com/subject/1295124/?from=reviews"" |
| href=""http://movie.douban.com/subject/1295124/?from=reviews"" |
| href=""http://movie.douban.com/subject/6845667/?from=reviews"" |
| href=""http://movie.douban.com/subject/6845667/?from=reviews"" |
| href=""http://movie.douban.com/subject/10533913/"" |
| href=""http://movie.douban.com/subject/26289144/"" |
| href=""http://movie.douban.com/subject/26147706/"" |
| href=""http://movie.douban.com/subject/10773239/"" |
| href=""http://movie.douban.com/subject/11624706/"" |
| href=""http://movie.douban.com/subject/26378698/"" |
| href=""http://movie.douban.com/subject/3338862/"" |
| href=""http://movie.douban.com/subject/25777784/"" |
| href=""http://movie.douban.com/subject/25881067/"" |
| href=http://movie.douban.com/subject/25766663/ |
这些 url 后缀分为四类：
1，无后缀：电影信息页面
2，?from=reviews：同上
3，?from=showing：同上
4，cinema：选择影院页面（购票）
原文：http://www.cnblogs.com/cuixiaochen/p/4739308.html