Home Backend Development Python Tutorial Python random模块常用方法

Python random模块常用方法

May 20, 2017 pm 03:03 PM
python random module Common methods

代码如下:

import random
print random.random()
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获取一个小于1的浮点数

代码如下:

import random
random.randint(1,10)
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获取一个从1到10的整数

代码如下:

import random
print random.uniform(0,2)
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获取一个大于0小于2的浮点数

代码如下:

import random
print random.randrange(1,10,4)
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获取一个从1到10步长为4的随机数

代码如下:

import random
a=[1,2,3,4,5]
random.choice(a)
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从列表a从随机取出一个元素

代码如下:

import random
a=[1,2,3,4,5]
random.shuffle(a)
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打乱列表a里元素的顺序

代码如下:

import random
a=[1,2,3,4,5]
random.sample(a,3)
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从列表a中以随机顺序取出3个元素(一个元素只能取出一次,所以取出的个数不能大于列表所含元素的个数)

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