文件方式实现完整的英文词频统计实例

song='''It's been a long day without you my friend

And I'll tell you all about it when I see you again

We've come a long way from where we began

Oh I'll tell you all about it when I see you again

When I see you again

Damn, who knew all the planes we flew?

Good things we've been through

That I'll be standing right here

Talking to you about another path

I know we loved to hit the road and laugh

But something told me that it wouldn't last

Had to switch up look at things different see the bigger picture

Those were the days hard work forever pays

Now I see you win the better place

How could we not talk about family when family's all that we got?

Everything I went through you were standing there by my side

And now you gonna be with me for the last ride

It's been a long day without you my friend

And I'll tell you all about it when I see you again

We've come a long way from where we began

Oh I'll tell you all about it when I see you again

When I see you again

First you both go out your way?

And the vibe is feeling strong and what's small turn to a friendship

Turn into a bond and that bond will never be broken and the love will never get lost

And when brotherhood come first then the line

Will never be crossed established it on our own

When that line had to be drawn and that line is what?

We reach so remember me when I'm gone

How could we not talk about family when family's all that we got?

Everything I went through you were standing there by my side

And now you gonna be with me for the last ride

So let the light guide your way

Hold every memory as you go

And every road you take will always lead you home

Hoo?

It's been a long day without you my friend?

And I'll tell you all about it when I see you again

We've come a long way from where we began

Oh I'll tell you all about it when I see you again

When I see you again

When I see you again, see you again

When I see you again'''
a=open('ph.txt','r')
song=a.read()
a.close()

song=song.lower()#字符串处理，把大写换成小写
for i in '?':
    song=song.replace(i,' ')#把'?'换成' '
words=song.split(' ')#单词的分隔
exp={'the','to','and','were','i','we','you','be','a'}#不统计单词的集合

dic={}
key=set(words)-exp#键的集合
for y in key:
    dic[y]=words.count(y)#计算单词的个数
    
yz=list(dic.items())#（单词，计数）元组的列表
yz.sort(key= lambda x:x[1],reverse=True)#对列表进行排序

for i in range(20):#输出前20个出现次数最多的单词
    print(yz[i]