英文词频统计

综合练习：英文词频统计

1. 词频统计预处理
2. 下载一首英文的歌词或文章
3. 将所有,.？！’:等分隔符全部替换为空格
4. 将所有大写转换为小写
5. 生成单词列表
6. 生成词频统计
7. 排序
8. 排除语法型词汇，代词、冠词、连词
9. 输出词频最大TOP10

   word = '''
   Lately, I've been, I've been losing sleep
   Dreaming about the things that we could be
   But baby, I've been, I've been praying hard,
   Said, no more counting dollars
   We'll be counting stars, yeah we'll be counting stars
   I see this life like a swinging vine
   Swing my heart across the line
   And my face is flashing signs
   Seek it out and you shall find
   Old, but I'm not that old
   Young, but I'm not that bold
   I don't think the world is sold
   I'm just doing what we're told
   I feel something so right
   Doing the wrong thing
   I feel something so wrong
   Doing the right thing
   I could lie, coudn't I, could lie
   Everything that kills me makes me feel alive
   Lately, I've been, I've been losing sleep
   Dreaming about the things that we could be
   But baby, I've been, I've been praying hard,
   Said, no more counting dollars
   We'll be counting stars
   '''
   #标点替换为空格
   symbol = [",", ".", "!", "?", "'", ":", "-"]
   #无意义的单词
   
   words = ['t','ve','ll','m']
   
   new_art = word
   for i in range(len(symbol)):
       new_art = new_art.replace(symbol[i],' ') #把文章的标点符号替换
   
   new_art = new_art.lower() #改成小写
   art_list = new_art.split() #以空格将字符串分成单词列表
   
   dic = dict(zip())
   for i in art_list:
       dic[i] = new_art.count(i) #用字典记录单词和其出现次数
   for i in words:
       if(dic.get(i)!=None): #如果为冠词之类的无意义的词，将其舍弃
           dic.pop(i)
   
   new_dic = sorted(dic.items(),key=lambda x:x[1],reverse = True)
   
   for i in range(10):
       print(new_dic[i]) #取出现频率最高的10个单词