1. 程式人生 > >python sorted() count() set(list)-去重

python sorted() count() set(list)-去重

英文文章 ret key asd sorted 方法 text python 問題

2、用python實現統計一篇英文文章內每個單詞的出現頻率,並返回出現頻率最高的前10個單詞及其出現次數,並解答以下問題?(標點符號可忽略)

(1) 創建文件對象f後,解釋f的readlines和xreadlines方法的區別?

(2) 追加需求:引號內元素需要算作一個單詞,如何實現?

cat /root/text.txt

hello world 2018 xiaowei,good luck
hello kitty 2017 wangleai,ha he
hello kitty ,hasd he
hello kitty ,hasaad hedsfds

#我的腳本

#!/usr/bin/python
#get [‘a‘,‘b‘,‘c‘]
import re
with open(‘/root/text.txt‘) as f:
  openfile = f.read()

def get_list_dict():
  word_list = re.split(‘[0-9\W]+‘,openfile)
  list_no_repeat = set(word_list)
  dict_word = {}
  for each_word in list_no_repeat:
    dict_word[each_word] = word_list.count(each_word)
  del dict_word[‘‘]
  return dict_word

#{‘a‘:2,‘c‘:5,‘b‘:1} => {‘c‘:5,‘a‘:2,‘b‘:1}
def sort_dict_get_ten(dict_word):
  list_after_sorted = sorted(dict_word.items(),key=lambda x:x[1],reverse=True)
  print list_after_sorted
  for i in range(3):
  print list_after_sorted[i][0],list_after_sorted[i][1]

def main():

dict_word = get_list_dict()
sort_dict_get_ten(dict_word)

if __name__ == ‘__main__‘:

main()

[(‘hello‘, 4), (‘kitty‘, 3), (‘he‘, 2), (‘good‘, 1), (‘hasd‘, 1), (‘wangleai‘, 1), (‘hasaad‘, 1), (‘xiaowei‘, 1), (‘hedsfds‘, 1), (‘luck‘, 1), (‘world‘, 1), (‘ha‘, 1)]
hello 4
kitty 3
he 2

python sorted() count() set(list)-去重