Python list count and insert instance _python

This example describes the Python list count and the use of inserts. Share to everyone for your reference. Specifically as follows:

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Word=[' A ', ' B ', ' C ', ' d ', ' e ', ' f ', ' G ']//the first element of the element 0,word[0]=a
A=[NUM1:NUM2]
Elements from NUM1 to num2 (excluding element num2)
If the number is negative, it represents the penultimate

Append append, Word.append (elements) when the list is being manipulated
Elements is independent, if the list is appended to Word as a whole, instead of extending word,
Word.extend (elements) is an extension that extends the elements contained elements to the back of Word insert () and inserts:

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Word.Insert (mum,elements)

The insertion is also a whole.

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