1 #-*-coding:utf-8-*-  2 __author__ = 'Deen'  3 ''' 4 题目描述：任一个英文的纯文本文件，统计其中的单词出现的个数。 5 参考学习链接： 6     re  http://www.cnblogs.com/tina-python/p/5508402.html#undefined 7     collections  http://blog.csdn.net/liufang0001/article/details/54618484 8 ''' 9 import re,collections10 with open('english.txt','r') as fp:11     text=fp.read().strip(',')12     s=re.compile(r'\w+\b')13     words=s.findall(text)14     b=list()15     dic=collections.defaultdict(lambda :0)16     for word in words:17         dic[word.lower()] +=118     19     print dic20 21 '''22 import collections,re23 import sys24 def cal(filename = 'english.txt'):25     print 'now processing:' + filename + '......'26     f = open(filename,'r')27     data = f.read()28     dic = collections.defaultdict(lambda :0)29     data = re.sub(r'[\W\d]',' ',data)30     data = data.lower()31     datalist = data.split(' ')32     for item in datalist:33         dic[item] += 134     del dic['']35     return dic36 try:37     print sorted(cal().items())38 except:39     print 'no input file'40 '''