作业3

strBig="""Remembering me,
　　Discover and see
　　All over the world,
　　She's known as a girl
　　To those who a free,
　　The mind shall be key
　　Forgotten as the past
　　'Cause history will last

　　God is a girl,
　　Wherever you are,
　　Do you believe it, can you recieve it?
　　God is a girl,
　　Whatever you say,
　　Do you believe it, can you recieve it?
　　God is a girl,
　　However you live,
　　Do you believe it, can you recieve it?
　　God is a girl,
　　She's only a girl,
　　Do you believe it, can you recieve it?

　　She wants to shine,
　　Forever in time,
　　She is so driven, she's always mine
　　Cleanly and free,
　　She wants you to be
　　A part of the future,
　　A girl like me
　　There is a sky,
　　Illuminating us, someone is out there
　　That we truly trust
　　There is a rainbow for you and me
　　A beautiful sunrise eternally

　　God is a girl
　　Wherever you are,
　　Do you believe it, can you recieve it?
　　God is a girl
　　Whatever you say,
　　Do you believe it, can you recieve it?
　　God is a girl
　　However you live,
　　Do you believe it, can you recieve it?
　　God is a girl
　　She's only a girl,
　　Do you believe it, can you recieve it? """
s1=strBig.lower()
print(s1)
strList=strBig.split()
print(strList)
strListSort=strList.sort()
print(strListSort)
print(strList)


for word in strList:
    strList.count(word)

classmates=["Mike","Bob","Tracy","小君","Tracy",56]
new=["Rose","Jack"]
classmates.insert(2,"Tom")
classmates.append("Jack")
classmates.extend(new)
print(classmates)
classmatesSet=set(classmates)
classmatesSet.add("Jack")
classmatesSet.remove("Bob")
print(classmates)
print(list("ababcd"),tuple("ababcd"))

 

 

列表：用list()函数或者[]创建，是可变序列。
元组：用()或者tuple()函数来实现；是不可变序列。
字典：用dict()函数或者{}创建，使用键-值（key-value）存储，键是不可变的对象。
集合：用set()函数或者{}创建，是一个无序不重复元素集。