如何在python中的字符串中獲取2個字符之間的所有字符

Question

我正在嘗試從網站上抓取一些數據，下面是我設法得到的一個很長的字符串。

var playerlist=["Roger Federer", "Rainer Schuettler", "Dominik Hrbaty", "Thomas Muster", "Andy Roddick", "Nikolay Davydenko", "Tommy Haas", "Jarkko Nieminen", "Arnaud Clement", "Ivan Ljubicic", "David Ferrer", "Nicolas Massu", "Tommy Robredo", "Lleyton Hewitt", "Filippo Volandri", "Olivier Rochus", "Kevin Kim", "Juan Ignacio Chela", "Juan Carlos Ferrero", "Jimmy Connors", "Mikhail Youzhny", "Ruben Ramirez Hidalgo", "Rafael Nadal"]

上面不是一個javascript列表，它是一個字符串。

我想從該字符串創建所有玩家名稱的列表。 因此，我必須提取“”之間的所有子字符串並將其添加到列表中。 另外，如果我能以某種方式將該字符串轉換為列表或數組，那就太好了。

有人可以建議我們如何在python中做到這一點嗎？

Answer 1

您可以使用ast.literal_eval

>>> s = 'var playerlist=["Roger Federer", "Rainer Schuettler", "Dominik Hrbaty", "Thomas Muster", "Andy Roddick", "Nikolay Davydenko", "Tommy Haas", "Jarkko Nieminen", "Arnaud Clement", "Ivan Ljubicic", "David Ferrer", "Nicolas Massu", "Tommy Robredo", "Lleyton Hewitt", "Filippo Volandri", "Olivier Rochus", "Kevin Kim", "Juan Ignacio Chela", "Juan Carlos Ferrero", "Jimmy Connors", "Mikhail Youzhny", "Ruben Ramirez Hidalgo", "Rafael Nadal"]'
>>> import ast
>>> start = s.index('[')
>>> ast.literal_eval(s[start:])
['Roger Federer', 'Rainer Schuettler', 'Dominik Hrbaty', 'Thomas Muster', 'Andy Roddick', 'Nikolay Davydenko', 'Tommy Haas', 'Jarkko Nieminen', 'Arnaud Clement', 'Ivan Ljubicic', 'David Ferrer', 'Nicolas Massu', 'Tommy Robredo', 'Lleyton Hewitt', 'Filippo Volandri', 'Olivier Rochus', 'Kevin Kim', 'Juan Ignacio Chela', 'Juan Carlos Ferrero', 'Jimmy Connors', 'Mikhail Youzhny', 'Ruben Ramirez Hidalgo', 'Rafael Nadal']

正如史蒂夫（Steve）在評論中提到的那樣，最好使用json.loads

>>> import json
>>> json.loads(s[start:])
[u'Roger Federer', u'Rainer Schuettler', u'Dominik Hrbaty', u'Thomas Muster', u'Andy Roddick', u'Nikolay Davydenko', u'Tommy Haas', u'Jarkko Nieminen', u'Arnaud Clement', u'Ivan Ljubicic', u'David Ferrer', u'Nicolas Massu', u'Tommy Robredo', u'Lleyton Hewitt', u'Filippo Volandri', u'Olivier Rochus', u'Kevin Kim', u'Juan Ignacio Chela', u'Juan Carlos Ferrero', u'Jimmy Connors', u'Mikhail Youzhny', u'Ruben Ramirez Hidalgo', u'Rafael Nadal']