对文中出现的句号,逗号和感叹号做了相应的处理

sorted排序函数用法:

按照value值降序排列:

sorted(dict.items(),key=lambda k:k[1],reverse=True)

按照value值升序排序:

sorted(dict.items(),key=lambda k:k[1],reverse=False)或者sorted(dict.items(),key=lambda k:k[1])

按照key值降序排列:

sorted(dict.items(),key=lambda k:k[0],reverse=True)

按照key值升序排列:

sorted(dict.items(),key=lambda k:k[0])或者sorted(dict.items(),key=lambda k:k[0],reverse=False)

#-*- coding: utf-8 -*-
file_object=open("english")
dict={}
for line in file_object:
 line=line.replace(","," ")
 line=line.replace("."," ")
 line=line.replace("!"," ")
 strs= line.split();
 for str in strs:
   if dict.has_key(str):
     dict[str]+=1
   else:
     dict[str]=1
result=sorted(dict.items(),key=lambda k:k[1],reverse=True)
print result

 

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