新练习

sing='''Everytime I try to fly, I fall
Without my wings, I feel so small
I guess I need you, baby
And everytime I see you in my dreams
I see your face, it's haunting me
I guess I need you, baby'''
s=sing.replace("..."," ")
print(s)

d=s.lower()
print(d)

c=s.split()
print(c)

dic={}
for i in c:
    count = c.count(i)
    dic[i] = count
print(dic)

dictlist = list(dic.items())
dictlist.sort(key=lambda x:x[1],reverse=True)
for i in dictlist:
    print(i)

效果如下

f = open('news.txt','r')
text = f.read()
f.close()
print(text)