Python Basics (int Class)

Everything in Python is an object, and objects are created based on classes.

This article focuses on some of the main data types in Python.

Integer (int Class)

Tip: All of the following methods are methods in the class, the first argument is self, and unity is not written.

The methods that are included are:

1, Bit_length ()#返回表示该数字时占用的最少位数

>>> (bit_length).

9

2. ABS (x) #返回绝对值

>>> ABS (-9)

9

3, __add__ (y)#等同于加法

x.__add__ (y) <==> x+y

4, __and__ (y)#求交集的意思

x.__and__ (y) <==> x&y

>>> x=5

>>> y=4

>>> x.__and__ (y)

4

5. CMP (x, y) #比较两个数大小

>>> CMP (10,5)

1 #大于返回1

>>> CMP (10,11)

-1 #小于返回-1

>>> CMP (10,10)

0 #等于返回0

6, Divmod (x, y): #相除, a tuple consisting of quotient and remainder, often used in page pagination

>>> Divmod (88,9)

(9, 7) #88除以9 Quotient is 9 of the 7

>>> Divmod (88,8)

(11, 0) #88除以8 Quotient is 11 of the 0

7, hash (x) #在字典查找中, hash value is used to quickly compare the dictionary keys. Two values if equal, the hash value is also equal.

>>> Hash (123)

123

8, int (x)#转换为整数

9, Long (x)#转换为长整数

10, float (x)#转换为浮点类型

>>> Float (12)

12.0

11, Hex (x)#返回当前数的 hexadecimal representation

12, Oct (x)#返回当前值的 octal representation

13. Pow (x,y) #次方

>>> Pow (2,3)

8

Next article:

String (str Class)

This article from "A rookie on the Sky" blog, please be sure to keep this source http://rmeos.blog.51cto.com/761575/1710203

Python Basics (int Class)