生成随机数的工具

随机整数:

 import random
 random.randint(0,99)


21

随机选取0到100间的偶数:

import random
random.randrange(0,100,2)

42

随机浮点数:

 import random
random.random() 
0.85415370477785668
random.uniform(1, 10)
5.4221167969800881

随机字符:

import random
 random.choice('abcdefg&#%^*f')


'd'

多个字符中选取特定数量的字符:
>>> import random
random.sample('abcdefghij',3)
['a', 'd', 'b']

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多个字符中选取特定数量的字符组成新字符串:
>>> import random
>>> import string
>>> string.join(random.sample(['a','b','c','d','e','f','g','h','i','j'], 3)).r
eplace(" ","")
'fih'

随机选取字符串:
>>> import random
>>> random.choice ( ['apple', 'pear', 'peach', 'orange', 'lemon'] )
'lemon'

洗牌:
>>> import random
>>> items = [1, 2, 3, 4, 5, 6]
>>> random.shuffle(items)
>>> items
[3, 2, 5, 6, 4, 1]

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转载自www.cnblogs.com/abnerhay/p/10571885.html