Common operators in basic python tutorials

This article describes common operators in basic python tutorials, including mathematical operators, operators used for judgment, and logical operators.

(Currently, we only know the basic usage of these operators, so that we can expand the following content. advanced applications are not introduced at the moment)

Mathematical operations

The code is as follows:

>>> Print 1 + 9 # Addition

>>> Print 1.3-4 # subtraction

>>> Print 3*5 # multiplication

>>> Print 4.5/1.5 # division

>>> Print 3 ** 2 # multiplication party

>>> Print 10% 3 # Calculate the remainder

Judgment

Returns True/False if it is True or False.

The code is as follows:

>>> Print 5 = 6 #=, equal

>>> Print 8.0! = 8.0 #! =, Not equal

>>> Print 3 <3, 3 <= 3 # <, less than; <=, less than or equal

>>> Print 4> 5, 4> = 0 #>, greater than; >=, greater than or equal

>>> Print 5 in [1, 3, 5] #5 is an element of list [1, 3, 5 ].

(There are also is, is not, and so on, not in-depth)

Logical operation

Operation between True and False

The code is as follows:

>>> Print True and True, True and False # and, "and", both are True.

>>> Print True or False # or, "or" operation. if one of them is True, it is True.

>>> Print not True # not, non operation, inverse operation

It can be used with the previous part to do some exercises, such:

The code is as follows:

>>> Print 5 = 6 or 3> = 3

Summary

Mathematics +,-, *,/, **, %

Judgment = ,! =,>,> =, <, <=, In

Logic and, or, not