组合数据类型练习

一.有字符串创建一个评分表
s = list("3221212132212")
print("评分表",s)
s.append("4")
print("增加",s)
s.pop()
print(s.count("3"))
print(s.count("1"))
print(s.index("3"))

　　

二.建立学生学号成绩字典
d={39:100,40:99,41:98,42:98}
print(d)
print(d[39])
print(d.pop(41))
print(d.values())

 三.英文歌曲词频统计

s='''
I\’m a big big girl ! 
In a big big world ! 
It\’s not a big big thing if U leave me.
But I do do feel.
That I too too will miss U much.
Miss U much ! 
I can see the first leaf falling.
It\’s all yellow & nice.
It\’s so very cold outside.
Like the way I\’m feeling inside.
I\’m a big big girl ! 
In a big big world ! 
It\’s not a big big thing if U leave me.
But I do do feel.
That I too too will miss U much.
Miss U much ! 
Outside it\’s now raining.
And tears are falling from my eyes.
I\’m a big big girl ! 
In a big big world ! 
It\’s not a big big thing if U leave me.
But I do do feel.
That I too too will miss U much.
Miss U much !
I have Ur arms around me ooooh like fire.
But when I open my eyes.
U\’re gone ! 
I\’m a big big girl ! 
In a big big world ! 
It\’s not a big big thing if U leave me.
But I do do feel.
That I too too will miss U much.
Miss U much ! 
I\’m a big big girl ! 
In a big big world ! 
It\’s not a big big thing if U leave me.
But I do feel I will miss U much ! 
Miss U much ! '''
print("do出现次数",s.count('do'))
s=s.replace(",","")
s=s.replace('.','')
s=s.replace('?','')
s=s.replace('!','')
s=s.replace('\n','')
s=s.lower()
s1=s.split(' ')
key=set(s1)
dic={}
for i in key:
    dic[i]=s.count(i)
wc=list(dic.items())
wc.sort(key=lambda x:x[1],reverse=True)
for i in range(10):
print(wc[i])

四..列表，元组，字典，集合的遍历

s=list('456132798')
t=set('4561327489')
c={'小明':'1','小红':'3','小华':'2'}
x=(1, 2, 3, 4, 5 )
print('列表的遍历为:',end='')
for i in s:
    print(i,end='')
print()
print('元祖的遍历为:',end='')
for i in x:
    print(i,end='')
print()
print('字典key的遍历为:',end='')
for i in c:
    print(i,end='')
print()
print('字典value的遍历为:',end='')
for i in c.values():
    print(i,end='')
print()
print('数组的遍历为:',end='')
for i in x:
    print(i,end='')