Python Basic Learning Notes (vii)--common operators

Python commonly used operators are: arithmetic operators, logical operators, comparison operators, respectively, described below.

1. Arithmetic operator

+ addition operator

-Subtraction operator

* Multiplication operator

/Division operator (Precise operation)

Division operator (the result is an integer that ignores the fractional part of the calculation result)

* * Power operator, or exponentiation operation

% modulo operator, which is the remainder

2. Comparison operators

> Greater than

>= greater than or equal to

< less than

<= less than or equal to

= = equals

! = does not equal

3. Logical operators

Not means to negate

and Logic and

or logical OR

4. Precedence of various operators

1) Overall: The arithmetic operator is higher than the comparison operator, and the comparison operator is higher than the logical operator.

2) Specific,

Arithmetic operators: Follow the mathematical law, single-specific to the power operator is special, the power operator * * Priority is higher than the left of the monocular operator (such as-minus), lower than the right of the monocular operator (such as-number)

Logical operators: Priority once from high to low for not > and > or

There is a picture of the truth:

650) this.width=650; "Src=" Http://s4.51cto.com/wyfs02/M01/88/5D/wKiom1fyRIPw4m1yAAQSx_7ysXQ751.png-wh_500x0-wm_3 -wmp_4-s_2444524886.png "title=" Prioroty.png "alt=" Wkiom1fyripw4m1yaaqsx_7ysxq751.png-wh_50 "/>

This article is from the "Davidlee's Linux Road" blog, so be sure to keep this source http://davidlinux.blog.51cto.com/5965954/1858612

Python Basic Learning Notes (vii)--common operators