import random
print(random.random())#(0,1)之间的浮点数
print(random.randint(1,4))#[1,4]之间的整数
print(random.randrange(1,4))#[1,4)之间的数
print(random.choice([1,‘a‘,[1,4,5,3,7],9]))#在数列里随机选一个
res=[1,‘a‘,[1,4,5,3,7],9]
print(random.sample(res,3))#在数列里随机选3个
print(random.shuffle(res))#打乱res的顺序
实例：生成随机验证码
import random def make_code(): while True: n = input(‘please input number>>>‘).strip() if n == ‘q‘: break if not n.isdigit(): continue n = int(n) res = ‘‘ for i in range(n): s1 = chr(random.randint(65, 90)) s2 = str(random.randint(0, 10)) s3 = chr(random.randint(97, 122)) res += random.choice([s1, s2, s3]) print(res) make_code()
原文：https://www.cnblogs.com/qiaoqianshitou/p/8745355.html