Python List Dictionary tuple

List

The 1 list consists of a series of elements arranged in a particular order. In Python, the square brackets [] are used to delimit the elements in a comma.

2 Access list element------Index (ordered collection)

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3 modifying, adding and deleting elements

Modify:

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Add to:

　　　　　　

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Append (the element is added by default at the end of the list), and there is an arbitrary insertion element insert

　　　　　　

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Delete (there are three types)

A; Know list index Del

　　　　　　

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B: Do not know where the element is in the list, and know the element value to remove:

　　　　　　

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C; Remove the end of list element pop

　　　　　　

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Pop there's another way of knowing the list index

　　　　　　

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Can be summed up in four words: increase, delete, change, plug

4 List of Actions

Traverse the entire list:

　　　　　　

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List slices (Gu Tou regardless of tail):

　　　　　　

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Slices can also traverse:

　　　　　　　

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5 List Length:

　　　　　　

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6 Use the method sort () to sort the list in a permanent order:

　　　　　　

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Use the method sort () to sort the list temporarily

　　　　　　

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Reverse the Print List:

　　　　　　

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Index

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Python List Dictionary tuple