Python-其他库/模块

1.collections库-累加器

from collections import Counter

doc = 'Python is an interpreted high-level programming language for general-purpose programming. '

#把doc按空格切割
word_list = doc.split()

#调用Counter()函数对单词进行累加
cc = Counter(word_list)
cc
--->
Counter({'Python': 1,
         'an': 1,
         'for': 1,
         'general-purpose': 1,
         'high-level': 1,
         'interpreted': 1,
         'is': 1,
         'language': 1,
         'programming': 1,
         'programming.': 1})

#迭代输出结果
for k,v in cc.most_common():
    print(k,v)
--->
Python 1
is 1
an 1
interpreted 1
high-level 1
programming 1
language 1
for 1
general-purpose 1
programming. 1