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

str='''
Every night in my dreams
I see you,I feel you
That is how I know you go on
Far across the distance
And spaces between us
You have come to show you go on
Near far
Wherever you are
I believe
That the heart does go on
Once more you open the door
And you're here in my heart
And my heart will go on and on
Love can touch us one time
And last for a lifetime
And never let go till we're gone
Love was when I loved you
One true time I hold to
In my life well always go on
Near far
Wherever you are
I believe
That the heart does go on
Once more you open the door
And you're here in my heart
And my heart will go on and on
you're here
There's nothing I fear
And I know
That my heart will go on
We'll stay forever this way
You are safe in my heart
And my heart will go on and on
'''

#逗号和略写   , '
sym=list("',")
for i in sym:
    str=str.replace(i," ")
#小写
str=str.lower()
#按空格分裂单词
str=str.split()
dictionary=dict()
#单词和个数存到字典中
for i in str:
    dictionary[i]=str.count(i)

#语法词删去
pron = ["for", "to", "the", "and", "of", "in","that","have","has","a","can","not"]
for i in pron:
    if i in dictionary.keys():
        del dictionary[i]

#按value值大小排序
dictionary=sorted(dictionary.items(),key=lambda item:item[1],reverse=True)
#输出
for i in range(10):
    print(dictionary[i])

 

结果：