Introduction to the indenting of the Python Basics tutorial _python

Python operators are similar to other languages

(For the moment, we only understand the basic usage of these operators, so that we could expand the later content, the advanced application is temporarily not introduced)

Mathematical operations

Copy Code code as follows:

>>>print 1+9 # Addition

>>>print 1.3-4 # Subtraction

>>>print 3*5 # multiplication

>>>print 4.5/1.5 # Division

>>>print 3**2 #

>>>print 10%3 # to find the remainder

Judge

Judge is true or false, return True/false

Copy Code code as follows:

>>>print 5==6 # =, equal

>>>print 8.0!=8.0 #!=, ranged

>>>print 3<3, 3<=3, less than; <=, less than or equal to

>>>print 4>5, 4>=0, greater than; >=, greater than or equal to

>>>print 5 in [1,3,5] # 5 is an element of the list [1,3,5]

(also is, isn't, etc, temporarily not deep)

Logical operations

The operation between True/false

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>>>print true and True, True and False # and, "and" operations, both are true true

>>>print true or False # or, or operation, one of which is true

>>>print not True # not, ' non ' operation, negation

You can do some exercises in conjunction with the previous part, such as:

Copy Code code as follows:

>>>print 5==6 or 3>=3

Summarize

Math +,-, *,/, * *,%

Judge = = =,!=, >=, <=, in

Logical AND, or, not