Question

 pos_tag(word_tokenize("John's big idea isn't all that bad.")) 
 [('John', 'NNP'), ("'s", 'POS'), ('big', 'JJ'), ('idea', 'NN'), ('is',
 'VBZ'), ("n't", 'RB'), ('all', 'DT'), ('that', 'DT'), ('bad', 'JJ'),
 ('.', '.')]

根本不识别语法。我如何在成对的第二个值中迭代检查JJ。

Answer 1

它看起来像一对对象列表（大小为2的元组）。

迭代它很简单：

for text, type in pos_tag(word_tokenize("John's big idea isn't all that bad.")):
    if type == 'JJ':
        print 'text:', text
        print 'type:', type

Answer 2

看起来像是一个包含2元组的列表。

[x for x in L if x[1] == 'JJ']

Answer 3

list_values = [
    ('John', 'NNP'),
    ("'s", 'POS'),
    ('big', 'JJ'),
    ('idea', 'NN'),
    ('is', 'VBZ'),
    ("n't", 'RB'), 
    ('all', 'DT'),
    ('that', 'DT'),
    ('bad', 'JJ'),
    ('.', '.')
]
for (a, b) in list_values:
    if b == 'JJ':
        DoSomething(a,b)

输出的数据类型是什么？

3 个答案: