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34 lines (28 loc) · 774 Bytes
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#!/usr/bin/env python
# -*- encoding: utf-8 -*-
"""
Topic: random随机数模块
Desc : random中的函数都不是线程安全的，必须使用锁机制
都是伪随机数，生成的数是确定的，不应用于密码
"""
import random
__author__ = 'Xiong Neng'
def main():
random.seed()
# 随机整数
print(random.getrandbits(3))
print(random.randint(200, 800))
print(2, 400, 2)
# 随机序列
seq = range(1, 10)
print(random.choice(seq))
print(random.sample(seq, 4))
a = list(seq)
random.shuffle(a)
print(a)
# 实数
print(random.random()) # [0.0, 1.0)之间的随机实数
print(random.uniform(2.1, 4.99)) # 一致分布的某个随机数
pass
if __name__ == '__main__':
main()