1.列表和元组的区别

1.一个元组由数个逗号分隔的值组成
2.元组是不可变的，列表是可变的
3.创建列表用[] 创建元组用()

2.元组的创建

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>>> tuple1 = (1,2,3,4,5)
>>> type(tuple1)
<class 'tuple'>
>>> tuple2 = (1,)
>>> type(tuple2)
<class 'tuple'>
>>> tuple3 = 1,2,3,4,5
>>> type(tuple3)
<class 'tuple'>
>>> tuple4 = ()
>>> type(tuple4)
<class 'tuple'>
>>> tuple5 = (1,2,3,4,'python',True)
>>> type(tuple5)
<class 'tuple'>

以下不是元组

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>>> tuple1 = (1)
>>> type(tuple1)
<class 'int'>

3.元组取值

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>>> temp = ('android', True, ['python', 'kotlin'])
>>> temp[0]
'android'
>>> temp[2]
['python', 'kotlin']

4.元组的更新

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>>> temp = ('android','java','kotlin')
>>> temp = temp[:1] + ('python',) + temp[1:]
>>> temp
('android', 'python', 'java', 'kotlin')
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>>> temp = ('android',True,[1,'zxy'])
>>> temp
('android', True, [1, 'zxy'])
>>> temp[2][0] = 'python'
>>> temp[2][1] = 'kotlin'
>>> temp
('android', True, ['python', 'kotlin'])

tuple所谓的“不可变”是说，tuple的每个元素，指向永远不变。即指向’android’，就不能改成指向True，
指向的这个列表[1,’zxy’]本身是可变的！

5.元组的删除,删除整个元组

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>>> del temp

6.元组的操作符

*

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>>> temp = (1,2,3,4)
>>> temp * 2
(1, 2, 3, 4, 1, 2, 3, 4)

>、<

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>>> temp = (1,2,3,4)
>>> temp1 = (2,3,4,5)
>>> temp < temp1
True

in

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>>> temp = (1,2,3,4)
>>> 1 in temp
True