#?-*-?coding:?utf-8?-*-
“““
Created?on?Mon?Feb?26?16:45:49?2018

@author:?user
“““
#出現(xiàn)只算1次
import?math
from?string?import?punctuation
import?re
class?EmailClassifier（object）:
????def?__init__（selfham_path=“ham/“spam_path=“spam/“tr_num=16）:
????????self.ham_path=ham_path
????????self.spam_path=spam_path
????????self.tr_num=tr_num
????def?getPosibility（self）:
????????self.ham_in_fre={}
????????self.spam_in_fre={}??
????????self.ham_notin_fre={}
????????self.spam_notin_fre={}
????????self.ham_in_dir={}
????????self.spam_in_dir={}
????????self.ham_notin_dir={}
????????self.spam_notin_dir={}
????????for?i?in?range（self.tr_num）:
????????????f=open（self.ham_path+str（i+1）+“.txt““r“）
????????????message=f.readlines（）
????????????f.close（）
????????????tmp=re.sub（r‘[{}]+‘.format（punctuation）‘‘?str（message））.lower（）.split（）?????????????#將字符串變?yōu)榱斜?br/>????????????t=[]
????????????for?w?in?tmp:???????????????????#將列表變?yōu)樽值?br/>????????????????if?w?in?t:
????????????????????continue
????????????????else:
????????????????????t.append（w）
????????????for?w?in?t:?????????????????????#將該信件內(nèi)容統(tǒng)計(jì)并入字典
????????????????if?w?in?self.ham_in_dir:
????????????????????self.ham_in_dir[w]+=1
????????????????else:
????????????????????self.ham_in_dir[w]=1
????????????????????self.spam_in_dir[w]=0
????????????f=open（self.spam_path+str（i+1）+“.txt““r“）
????????????message=f.readlines（）
????????????f.close（）
????????????tmp=re.sub（r‘[{}]+‘.format（punctuation）‘‘?str（message））.lower（）.split（）?????????????#將字符串變?yōu)榱斜?br/>????????????t=[]???????????
????????????for?w?in?tmp:???????????????????#將列表變?yōu)樽值?br/>????????????????if?w?in?t:
????????????????????continue
????????????????else:
????????????????????t.append（w）
????????????for?w?in?t:?????????????????????#將該信件內(nèi)容統(tǒng)計(jì)并入字典
????????????????if?w?in?self.spam_in_dir:
????????????????????self.spam_in_dir[w]+=1
????????????????else:
????????????????????self.ham_in_dir[w]=0
????????????????????self.spam_in_dir[w]=1??????????????????#將該信件內(nèi)容統(tǒng)計(jì)并入字典
????????self.p_ham=0.5
????????self.p_spam=0.5
????????for?w?in?self.ham_in_dir:
????????????self.ham_in_fre[w]=（self.ham_in_dir[w]+1）/（self.tr_num+2）
????????????self.ham_notin_fre[w]=（self.tr_num-self.ham_in_dir[w]+1）/（self.tr_num+2）
????????????self.spam_in_fre[w]=（self.spam_in_dir[w]+1）/（self.tr_num+2）
????????????self.spam_notin_fre[w]=（self.tr_num-self.spam_in_dir[w]+1）/（self.tr_num+2）
????def?test（self）:
????????correct_number=0
????????print（“ham中：“）
????????for?i?in?range（25-self.tr_num）:
????????????f=open（self.ham_path+str（i+self.tr_num+1）+“.txt““r“）
????????????message=f.readlines（）
????????????f.close（）
????????????
????????????tmp=re.sub（r‘[{}]+‘.format（punctuation）‘‘?str（message））.lower（）.split（）?????????????#將字符串變?yōu)榱斜?br/>????????????t=[]
????????????for?w?in?tmp:???????????????????#將列表變?yōu)樽值?br/>????????????????if?w?in?t:
????????????????????continue
????????????????else:
????????????????????t.append（w）
????????????p_h=math.log10（s

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件???????5140??2018-02-27?19:47??EmailClassifier.py

?????文件????????148??2010-10-23?17:11??ham\1.txt

?????文件?????????86??2010-10-23?17:13??ham\10.txt

?????文件????????130??2010-10-23?17:13??ham\11.txt

?????文件????????182??2010-10-23?09:16??ham\12.txt

?????文件????????174??2010-10-23?17:13??ham\13.txt

?????文件????????172??2010-10-23?17:13??ham\14.txt

?????文件????????531??2010-10-23?09:21??ham\15.txt

?????文件?????????90??2010-10-23?09:21??ham\16.txt

?????文件????????464??2010-10-23?09:22??ham\17.txt

?????文件????????175??2010-10-23?09:23??ham\18.txt

?????文件????????161??2010-10-23?17:14??ham\19.txt

?????文件????????234??2010-10-23?08:48??ham\2.txt

?????文件????????208??2010-10-23?09:26??ham\20.txt

?????文件????????234??2010-10-23?09:27??ham\21.txt

?????文件????????330??2010-10-23?09:28??ham\22.txt

?????文件????????607??2018-02-27?19:40??ham\23.txt

?????文件?????????42??2010-10-23?09:33??ham\24.txt

?????文件?????????89??2010-10-23?09:34??ham\25.txt

?????文件????????371??2010-10-23?08:49??ham\3.txt

?????文件????????207??2010-10-23?08:50??ham\4.txt

?????文件????????114??2010-10-23?17:11??ham\5.txt

?????文件???????1464??2010-10-23?17:12??ham\6.txt

?????文件????????109??2010-10-23?17:12??ham\7.txt

?????文件????????638??2010-10-23?08:58??ham\8.txt

?????文件????????146??2010-10-23?09:01??ham\9.txt

?????文件????????238??2010-10-23?08:28??spam\1.txt

?????文件????????217??2010-10-23?08:36??spam\10.txt

?????文件????????414??2010-10-23?08:37??spam\11.txt

?????文件????????188??2010-10-23?08:37??spam\12.txt

............此處省略26個(gè)文件信息