python实现统计文本中单词出现的频率详解

#coding=utf-8import osfrom collections import Countersumsdata=[]for fname in os.listdir(os.getcwd()):  if os.path.isfile(fname) and fname.endswith('.txt'):    with open(fname,'r') as fp:      data=fp.readlines()    sumsdata+=[line.strip().lower() for line in data]cnt=Counter()for word in sumsdata:  cnt[word]+=1cnt=dict(cnt)for key,value in cnt.items():  print(key+":"+str(value))