>>> a = (1,2,3,4,5)

>>> b = list(a) #转换成列表对象, 可以更改

>>> b

[1, 2, 3, 4, 5]

>>> b[0] = "HAHA" #更新列表内的值.

>>> b

['HAHA', 2, 3, 4, 5]

>>> c = tuple(b) #tuple,把列表转换成元组

>>> c

('HAHA', 2, 3, 4, 5)

>>> a = set('abc') #定义集合

>>> a

set(['a', 'c', 'b'])

>>> a.add('young') #增加成员

>>> a

set(['a', 'c', 'b', 'young'])

>>> a.update('TEST') #更新成员

>>> a

set(['a', 'c', 'b', 'E', 'young', 'S', 'T'])

>>> a.remove('E')

>>> a

set(['a', 'c', 'b', 'young', 'S', 'T'])

>>> a.update("TTTT") #没有重复

>>> a

set(['a', 'c', 'b', 'young', 'S', 'T'])

>>> a.update("SB")

>>> a

set(['a', 'c', 'b', 'young', 'S', 'B', 'T'])

>>> a.remove('S') #移除成员

>>> a

set(['a', 'c', 'b', 'young', 'B', 'T'])

>>> b = frozenset('abc')

>>> b

frozenset(['a', 'c', 'b'])

>>> b.add('a')

Traceback (most recent call last):

  File "<pyshell#17>", line 1, in <module>

    b.add('a')

AttributeError: 'frozenset' object has no attribute 'add'

#成员关系

>>> a

set(['a', 'c', 'b', 'young', 'B', 'T'])

>>> "a" in a

True

>>> "d" not in a

True

#集合交集,并集,差集

>>> a = set('abc')

>>> b = set('cde')

>>> a & b #交集

set(['c'])

>>> a | b #并集

set(['a', 'c', 'b', 'e', 'd'])

>>> a - b #差集

set(['a', 'b'])

#列表去重复的值

>>> a = [1,2,3]

>>> a.append(2)

>>> a.append(3)

>>> a

[1, 2, 3, 2, 3]

>>> set(a) #转换成集合

set([1, 2, 3])

>>> list(set(a)) #转换成列表

[1, 2, 3]