Python Operators: The Ultimate Guide from Newbie to Master

pythonOperator Introduction

Operators are special symbols or keywords used to perform operations between two or more operands. Python provides a variety of operators covering a wide range of uses, from basic mathematical operations to complex data operations.

Mathematical operators

Mathematical operators are used to perform common mathematical operations. They include:

Operator	operate	Example
	addition	a b
-	Subtraction	a - b
*	multiplication	a * b
/	division	a / b
%	Modular operation (remainder)	a % b
**	Power operation	a ** b
//	Divide (discard remainder)	a // b

Logical Operators

Logical operators are used to connect Boolean values ​​and evaluate conditions. They include:

Operator	operate	Example
and	Logic and	a and b
or	Logical or	a or b
not	logical not	not a

Comparison operators

Comparison operators are used to compare two values ​​and return a Boolean result. They include:

Operator	operate	Example
==	equal	a == b
!=	not equal to	a != b
	is less than	a
>	more than the	a > b
	less than or equal to	a
>=	greater than or equal to	a >= b

Assignment operator

Assignment operator is used to assign a value to a variable. They include:

Operator	operate	Example
=	Assignment	a = b
=	Addition assignment	a = b
-=	Subtraction assignment	a -= b
*=	Multiplication assignment	a *= b
/=	Division assignment	a /= b
%=	Modular assignment	a %= b

Special operators

In addition to the above main types of operators, Python also provides several special operators, including:

Operator	operate	Example
is	Identity comparison	a is b
in	Member Relationship	a in b
not in	Not a member	a not in b

Python operator precedence

Python operators have different precedence, which means that some operators are evaluated before others. Operator precedence is as follows:

1. brackets
2. Power operation
3. Unary operator (such as not)
4. Multiplication, division, remainder
5. Addition, subtraction
6. Shift operator
7. Comparison operators
8. Logical Operators
9. Assignment operator

actual case

Here are some examples demonstrating Python operators in action:

# 数学运算符
result = 10 + 5 * 2# 结果为20

# 逻辑运算符
is_true = True and False# 结果为False

# 比较运算符
if 10 < 20:
print("True")# 打印True

# 赋值运算符
value = 10
value += 5# 更新value为15

in conclusion

Mastering Python operators is crucial to using the language effectively. From basic mathematical operations to complex logical comparisons, operators provide powerfultools for a wide range of uses. By understanding the different types of operators and their precedence, you can write Python code more efficiently and create more powerful and maintainable programs.

The above is the detailed content of Python Operators: The Ultimate Guide from Newbie to Master. For more information, please follow other related articles on the PHP Chinese website!