Summary of [Python List Tuple]

Source: Internet
Author: User
Tags python list

The list created can have different types of values

>>> numbers=[1,2,'three','four','  Five']>>> numbers['three'  Four"Five"

Append () method

>>> numbers.append ('6')>>> numbers['  Three' four'Five' 6 ' ]

Pop () method

>>> Numbers.pop (3)'four'>>> numbers[' three ' ' Five ' ' 6 ' ]

Insert () method

>>> Numbers.insert (3,4)>>> numbers['three'  Five'6']

Access directly through indexed values

>>> numbers[2]=3>>> numbers['Five ' 6 ' ]

A tuple is a list of values that cannot be changed once the initialization is initialized

But a tuple can have a list as an element tuple cannot change the element address so even the list doesn't matter.

And the values in the list can change randomly.

Dict because if the key value can be hash, so it can not put the list and so on itself can change elements

Set is a set of unordered and non-repeating elements in mathematical sense

>>> S=set ([1,2,2,3,3,4,4,5,5,5])>>> sset ([1, 2, 3, 4, 5])>>> S.add (5)>>> sset ([1, 2, 3, 4, 5])>>> s.remove (5)>>> Sset ([1, 2, 3, 4])>>> s2 = set ([1,2,3,4,5])>>> s&s2set ([1 , 2, 3, 4])>>> s| S2set ([1, 2, 3, 4, 5])

Summary of [Python List Tuple]

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