>>> import random>>> random.random()0.42936489785928167>>> random.randint(1,3)    #包含31>>> random.randrange(1,3)  # 不包含31>>> random.choice([2,3,4,5])3>>> random.sample([2,3,4,5,6,7],3)[5, 3, 2]>>> string.digits'0123456789'>>> string.ascii_letters'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'>>> string.hexdigits'0123456789abcdefABCDEF'>>> string.ascii_lowercase + string.digits'abcdefghijklmnopqrstuvwxyz0123456789'>>> >>> s=string.ascii_lowercase + string.digits>>> random.sample(s,5)['5', 'w', 'v', 'q', 'i']>>>

 

洗牌

>>> l=[1,2,3,4]>>> random.shuffle(l)>>> l[1, 2, 4, 3]>>>