Seven operators based on python and seven operators of python

Seven operators based on python and seven operators of python

Not much nonsense. The previous section describes data types. This article describes data operations.

In Formula 1 + 2, "1" and "2" are called operands, and "+" are called operators.

Python supports the following operators:

• Arithmetic Operators
• Comparison (relational) Operator
• Value assignment operator
• Logical operators
• Bitwise operators
• Member Operators
• Identity Operators

 

0x00. Arithmetic Operator

Assume that variable a is 10 and variable B is 20:

Operator	Description	Instance
+	Add-add two objects	The output result of a + B is 30.
-	Minus-negative number or subtraction of two objects	The output result of a-B is-10.
*	Multiply by two numbers or return a string that has been repeated for several times.	A * B Outputs 200
/	Division-division of two numbers	The output result of B/a is 2.
%	Modulo-returns the remainder after division.	The output result of B % a is 0.
**	Power-returns the y Power of x.	A ** B is the 10th power of 20
//	Returns the integer portion of the operator.	9 // 2 the output result is 4, 9.0 // 2.0 the result is 4.0

Operator	Description	Instance
+	Add-add two objects	A + B output result 30
-	Minus-get a negative number or a number minus another number	A-B output result-10
*	Multiply by two numbers or return a string that has been repeated for several times.	A * B output 200
/	Divide By-x by y	B/a output result 2
%	Modulo-return the remainder of the Division	B % a output result 0
**	Power-returns the y Power of x.	A ** B is the 10th power, and the output result is 100000000000000000000.
//	Returns the integer portion of the operator.	9 // 2 output result 4, 9.0 // 2.0 output result 4.0

 

0x01.Comparison Operators

Assume that variable a is 10 and variable B is 20:

Operator	Description	Instance
=	Equal to-compare whether the object is equal	(A = B) returns False.
! =	Not equal to-compare whether two objects are not equal	(! = B) returns True.
<>	Not equal to-compare whether two objects are not equal	(A <> B) returns True. Similar! =
>	Division-two numbers division greater than-returns whether x is greater than y	(A> B) returns False.
<	Less than-returns whether x is less than y. All comparison operators return 1 to indicate true, and 0 to indicate false. This is equivalent to the special variables True and False. Note: These variable names are capitalized.	(A <B) returns True.
> =	-Returns whether x is greater than or equal to y.	(A> = B) returns False.
<=	Less than or equal to-returns whether x is less than or equal to y	(A <= B) returns True.

Operator	Description	Instance
=	Equal to-compare whether the object is equal	(A = B) returns False.
! =	Not equal to-compare whether two objects are not equal	(! = B) returns True.
<>	Not equal to-compare whether two objects are not equal	(A <> B) returns True. This operator is similar! =.
>	Greater than-returns whether x is greater than y	(A> B) return False.
<	Less than-returns whether x is less than y. All comparison operators return 1 to indicate true, and 0 to indicate false. This is equivalent to the special variables True and False. Note: These variable names are capitalized.	(A <B) returns True.
> =	-Returns whether x is greater than or equal to y.	(A> = B) returns False.
<=	Less than or equal to-returns whether x is less than or equal to y.	(A <= B) returns True.

 

0x02. Value assignmentOperator

Assume that variable a is 10 and variable B is 20:

Operator	Description	Instance
=	Simple value assignment operator	C = a + B: Assign the result of a + B to c.
+ =	Addition assignment operator	C + = a is equivalent to c = c +
-=	Subtraction assignment operator	C-= a is equivalent to c = c-
* =	Multiplication and assignment operators	C * = a is equivalent to c = c *
/=	Division assignment operator	C/= a is equivalent to c = c/
** =	Power assignment operator	C ** = a is equivalent to c = c **
% =	Modulo assignment operator	C % = a is equivalent to c = c %
// =	Integer Division assignment operator	C // = a is equivalent to c = c //

Operator	Description	Instance
=	Simple value assignment operator	C = a + B: Assign the operation result of a + B to c.
+ =	Addition assignment operator	C + = a is equivalent to c = c +
-=	Subtraction assignment operator	C-= a is equivalent to c = c-
* =	Multiplication and assignment operators	C * = a is equivalent to c = c *
/=	Division assignment operator	C/= a is equivalent to c = c/
% =	Modulo assignment operator	C % = a is equivalent to c = c %
** =	Power assignment operator	C ** = a is equivalent to c = c **
// =	Integer Division assignment operator	C // = a is equivalent to c = c //

 

0x03. LogicOperator

Assume that variable a is 10 and variable B is 20:

Operator	Logical expression	Description	Instance
And	X and y	Boolean "and"-If x is False, x and y returns False, otherwise it returns the calculated value of y.	(A and B) returns 20
Or	X or y	Boolean "or"-If x is not 0, it returns the value of x; otherwise, it returns the calculated value of y.	(A or B) returns 10
Not	Not x	Boolean "not"-If x is True, False is returned. Returns True if x is False.	Not (a and B) returns False

Operator	Logical expression	Description	Instance
And	X and y	Boolean "and"-If x is False, x and y returns False, otherwise it returns the calculated value of y.	(A and B) returns 20.
Or	X or y	Boolean "or"-If x is not 0, it returns the value of x; otherwise, it returns the calculated value of y.	(A or B) returns 10.
Not	Not x	Boolean "not"-If x is True, False is returned. Returns True if x is False.	Not (a and B) returns False

 

0x04.Bitwise operators

Assume that variable a is 60 and variable B is 13:

Bitwise operators regard numbers as binary values for calculation. The bitwise Algorithm in Python is as follows:

Operator	Description	Instance
&	Bitwise AND operator	(A & B) output result 12, binary explanation: 0000 1100
|	Bitwise OR operator	(A | B) output result 61, binary explanation: 0011 1101
^	Bitwise OR operator	(A ^ B) output result 49, binary explanation: 0011 0001
~	Bitwise Inverse Operator	(~ A) output result-61, binary explanation: 1100 0011, in the form of a signed binary number Complement
<	Left moving Operator	A <2 output result 240, binary explanation: 1111 0000
>	Right moving Operator	A> 2 output result 15. Binary explanation: 0000 1111

Operator	Description	Instance
&	Bitwise AND operator	(A & B) output result 12, binary explanation: 0000 1100
|	Bitwise OR operator	(A | B) output result 61, binary explanation: 0011 1101
^	Bitwise OR operator	(A ^ B) output result 49, binary explanation: 0011 0001
~	Bitwise Inverse Operator	(~ A) output result-61, binary explanation: 1100 0011, in a signed binary complement form.
<	Left moving Operator	A <2 output result 240, binary explanation: 1111 0000
>	Right moving Operator	A> 2 output result 15. Binary explanation: 0000 1111

 

0x05.Member Operators

Operator	Description	Instance
In	If a value is found in the specified sequence, True is returned; otherwise, False is returned.	X is in the y sequence. If x is in the y sequence, True is returned.
Not in	If no value is found in the specified sequence, True is returned; otherwise, False is returned.	X is not in the y sequence. If x is not in the y sequence, True is returned.

 

0x06. IdentityOperator

Identity operators are used to compare the storage units of two objects.

Operator	Description	Instance
Is	Is used to determine whether two identifiers are referenced from an object	X is y. If id (x) is equal to id (y ),IsReturn result 1
Is not	Is not indicates whether two identifiers are referenced from different objects.	X is not y, if id (x) is not equal to id (y ).Is notReturn result 1

 

Operator priority

The following table lists all operators with the highest to lowest priority:

Operator	Description
**	Index (highest priority)
~ +-	Flip by bit, one-dollar plus sign and minus sign (the last two methods are named + @ and -@)
*/% //	Multiplication, division, modulo and Division
+-	Addition and subtraction
>>< <	Right Shift, Left Shift Operator
&	AND'
^ |	Bitwise operators
<=<>>=	Comparison Operators
<>==! =	Equal to operator
= % =/= // =-= + = * = ** =	Value assignment operator
Is not	Identity Operators
In not in	Member Operators
Not or and	Logical operators

 

To be continued, next article: Conditional loop statements based on python