Beginning Python From Novice to Professional (1) －数字和表达式

数字和表达式

加减乘除：

>>> 2+2
4
>>> 100-50
50
>>> 3*5
15
>>> 1/2
0
>>> 1.0/2.0
0.5

求余、乘方：

>>> 1%2
1
>>> 10%3
1
>>> 2**3
8
>>> -3**2
-9
>>> (-3)**2
9

十六进制、八进制：

>>> 0xff
255
>>> 020
16

变量：

>>> x=3
>>> x*2
6

获取输入：

>>> x=input("x: ")
x: 4
>>> x*2
8

函数：

>>> pow(2,3)
8
>>> abs(-10)
10

时间： 2024-08-07 03:30:58

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Beginning Python From Novice to Professional (1) － 数字和表达式

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