因为概率问题，所以需要测试一下python的随机数分布。到底是平均（均匀）分布，还是正态（高斯）分布。

测试代码如下：

#! /usr/bin/env python

#coding=utf-8

# =================================

# Describe : 测试random随机数分布

# D&P Author By: 常成功

# Create Date: 2017/10/07

# Modify Date: 2017/10/20

# (C) 2012-2017 All rights reserved

# =================================

import random

import time

def test_rnd():

st_tm = time.time()

j = 0

num = 0

the_list = [1, 2, 3, 4]

# 计数字典

temp_dic = {1: 0, 2: 0, 3: 0, 4: 0}

while 1:

x = random.choice(the_list)

temp_dic[x] += 1

j += 1

# 跑一千万次

if j >= 10000000:

break

ed_tm = time.time()

print "Test random.choice()---------------------------:"

print "loop num: ", j

print "take time: ", ed_tm-st_tm

print "temp_dic :", temp_dic

print "Test random.randint()---------------------------:"

st_tm = time.time()

j = 0

num = 0

# 计数字典

temp_dic = {1: 0, 2: 0, 3: 0, 4: 0}

while 1:

x = random.randint(1, 4)

temp_dic[x] += 1

j += 1

# 跑一千万次

if j >= 10000000:

break

ed_tm = time.time()

print "loop num: ", j

print "take time: ", ed_tm-st_tm

print "temp_dic :", temp_dic

if __name__ == '__main__':

test_rnd()

测试结果：

Test random.choice()---------------------------:

loop num: 10000000

take time: 5.86599993706

temp_dic : {1: 2501333, 2: 2500117, 3: 2499406, 4: 2499144}

Test random.randint()---------------------------:

loop num: 10000000

take time: 12.493999958

temp_dic : {1: 2497732, 2: 2501411, 3: 2499372, 4: 2501485}

结果说明：平均（均匀）分布。

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。