Python 查找问题 [英] Python Find Question

问题描述

我正在使用 Python 从使用 rfind 的链接中提取文件名，如下所示:

I am using Python to extract the filename from a link using rfind like below:

url = "http://www.google.com/test.php"

print url[url.rfind("/") +1 : ]

这适用于链接末尾没有/的情况，并返回test.php".我在结尾遇到了与/的链接，例如 "http://www.google.com/test.php/".当末尾有/"时，我无法获取页面名称，有人可以帮忙吗?

This works ok with links without a / at the end of them and returns "test.php". I have encountered links with / at the end like so "http://www.google.com/test.php/". I am have trouble getting the page name when there is a "/" at the end, can anyone help?

干杯

推荐答案

仅删除末尾的斜杠是行不通的，因为您可能有一个如下所示的 URL:

Just removing the slash at the end won't work, as you can probably have a URL that looks like this:

http://www.google.com/test.php?filepath=tests/hey.xml

...在这种情况下，您将返回hey.xml".您可以使用 urlparse 去掉参数，而不是手动检查这个，然后检查其他人建议的:

...in which case you'll get back "hey.xml". Instead of manually checking for this, you can use urlparse to get rid of the parameters, then do the check other people suggested:

from urlparse import urlparse
url = "http://www.google.com/test.php?something=heyharr/sir/a.txt"
f = urlparse(url)[2].rstrip("/")
print f[f.rfind("/")+1:]

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