Shulou(Shulou.com)06/03 Report--

This article introduces the relevant knowledge of "what are the basic grammars in Python". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

1. Control structure

The control structure includes conditional judgment and loop. In python, instead of the traditional characteristic of enclosing the code block with curly braces, it is expressed by indentation, and the conditional judgment corresponds to the if statement, which is written as follows:

# single if

If x > 3:

Print (1)

# if.. Else

If x > 3:

Print (1)

Else:

Print (2)

# if.. elif.. else

If x > 3:

Print 1

Elif x > 2:

Print 2

Elif x > 3:

Print 3

Else:

Print 4

There are two kinds of loops: the for loop and the while loop. The for loop is implemented by the member operator in. The usage is as follows

Letters = ['await,' baked,'c']

For i in letters:

Print (I)

The for loop is used for scenarios where the same operation is performed for each element, and the while loop is used for operations under given conditions, as follows

While x

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