Python随机数与随机字符串详解
nf456
10年前
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, 101, 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']
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]
random的函数还有很多,此处不一一列举,