系统运维 python 模块 random

In [1]: import random

In [2]: random.uniform(0.7,5)
Out[2]: 0.7418808135797732

In [3]: random.uniform(0.7,5)
Out[3]: 1.20091265582769

In [4]: random.uniform(0.7,5)
Out[4]: 4.7791965347089125

In [5]: random.uniform(0.7,5)
Out[5]: 2.7882796316003295

In [6]: random.choice([2,3,4,5])
Out[6]: 3

In [7]:

In [7]: random.choice([2,3,4,5])
Out[7]: 3

In [8]: random.choice([2,3,4,5])
Out[8]: 5

In [9]: random.choices([2,3,4,5])
---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
 in ()
----> 1 random.choices([2,3,4,5])

AttributeError: \'module\' object has no attribute \'choices\'

python3 有choices
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