列表、元组、字典、集合的定义与操作

l=['eat','sleep','drink']
l.append('study')
l.pop()
print(l)

t=('eat','sleep','drink')
scores=[10000,1000,100]

d={'eat':10000,'sleep':1000,'drink':100}
d['sleep']=999
d['study']=10
d.pop('sleep')
print(d)

s1={'eat','sleep','drink'}
s2={'eat',2}
print(s1,s2)
print(s1&s2)
print(s1|s2)


列表:是用中括号括起来的可以改变顺序的
元组:是用小括号括起来的不能改变顺序的
字典:是用花括号括起来的没有顺序的键对
集合:是用花括号括起来的单个元素

totalstr='201709080027许文杰  201709080028梁珍瑜 201709080029陈思诺 201709080030李凌正 201709080032曾少昆 201709080033赵敏厅 201709080033赵敏婷 201709080034黄雪旎 201709080035范婧祺'
totallist=totalstr.split(' ')
totalset=set(totallist)
print(totallist)
print(totalset)

totaldict={}
for s in totalset:
    totaldict[s]=totallist.count(s)
print(totaldict)