常用标准库 random，python 入门教程之每日 5 or 6 道题 | Python技能树征题

Posted 2021-10-31 梦想橡皮擦

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本篇博客主要为 https://bbs.csdn.net/skill/python 频道练习题模块补充题目，暂定每天提供 5 or 6 道测试题，后面可能会更多哦~。

本篇博客对【进阶语法】→**【常用标准库】**进行出题。

以下题目，默认将正确答案，放置在选项 A 位置

文章目录

知识点：python random 库

知识点：python random 库

第 1 题：

题目难度：1 星
题干（问题描述）：
下述哪个选项能在 1~100 中的随机选择 10 个数字

选项 A：

import random

for i in range(1, 6):
    rand_num = random.randint(1, 100)
    print(rand_num)

选项 B：

import random

for i in range(1, 6):
    rand_num = random.random(1, 100)
    print(rand_num)

选项 C：

import random

for i in range(1, 6):
    rand_num = random.sample(1, 100)
    print(rand_num)

选项 D：

import random

for i in range(1, 6):
    rand_num = random.randint(1, 101)
    print(rand_num)

正确答案：A

第 2 题：

题目难度：1 星
题干（问题描述）：
编写程序，在程序中随机为用户生成 6 位数短信验证码，包含大写字母。

选项 A：

import random

password = []
for i in range(3):
    num = random.randint(0, 9)
    password.append(str(num))
    char_num = random.randint(65, 90)
    password.append(chr(char_num))

print("".join(password))

选项 B：

import random

password = []
for i in range(6):
    num = random.randint(0, 9)
    password.append(str(num))
    char_num = random.randint(65, 90)
    password.append(chr(char_num))

print("".join(password))

选项 C：

import random

password = []
for i in range(3):
    num = random.randint(0, 9)
    password.append(str(num))
    char_num = random.randint(97,122)
    password.append(chr(char_num))

print("".join(password))

选项 D：

import random

password = []
for i in range(3):
    num = random.randint(0, 9)
    password.append(str(num))
    char_num = random.randint(97,122)
    password.append(chr(num ))

print("".join(password))

正确答案：A

第 3 题：

题目难度：2 星
题干（问题描述）：
爬虫代码编写中，会随机获取用户代理值，即 User-Agent，编写函数，实现随机从列表中获取 User-Agent。

选项 A：

import random


def get_headers():
    uas = [
        "Mozilla/5.0 (compatible; Baiduspider/2.0; +http://www.baidu.com/search/spider.html)",
        "Mozilla/5.0 (compatible; Baiduspider-render/2.0; +http://www.baidu.com/search/spider.html)",
        "Baiduspider-image+(+http://www.baidu.com/search/spider.htm)",
        "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.81 YisouSpider/5.0 Safari/537.36",
    ]
    ua = random.choice(uas)
    headers = {
        "user-agent": ua
    }
    return headers

if __name__ == '__main__':
    print(get_headers())

选项 B：

import random


def get_headers():
    uas = [
        "Mozilla/5.0 (compatible; Baiduspider/2.0; +http://www.baidu.com/search/spider.html)",
        "Mozilla/5.0 (compatible; Baiduspider-render/2.0; +http://www.baidu.com/search/spider.html)",
        "Baiduspider-image+(+http://www.baidu.com/search/spider.htm)",
        "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.81 YisouSpider/5.0 Safari/537.36",
        "Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)",
        "Mozilla/5.0 (compatible; Googlebot-Image/1.0; +http://www.google.com/bot.html)",
        "Sogou web spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)",
        "Sogou News Spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)",
        "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0);",
        "Mozilla/5.0 (compatible; bingbot/2.0; +http://www.bing.com/bingbot.htm)",
        "Sosospider+(+http://help.soso.com/webspider.htm)",
        "Mozilla/5.0 (compatible; Yahoo! Slurp China; http://misc.yahoo.com.cn/help.html)"
    ]
    ua = random.random(uas)
    headers = {
        "user-agent": ua
    }
    return headers

if __name__ == '__main__':
    print(get_headers())

选项 C：

import random


def get_headers():
    uas = [
        "Mozilla/5.0 (compatible; Baiduspider/2.0; +http://www.baidu.com/search/spider.html)",
        "Mozilla/5.0 (compatible; Baiduspider-render/2.0; +http://www.baidu.com/search/spider.html)",
        "Baiduspider-image+(+http://www.baidu.com/search/spider.htm)",
        "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.81 YisouSpider/5.0 Safari/537.36",
        "Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)",
        "Mozilla/5.0 (compatible; Googlebot-Image/1.0; +http://www.google.com/bot.html)",
        "Sogou web spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)",
        "Sogou News Spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)",
        "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0);",
        "Mozilla/5.0 (compatible; bingbot/2.0; +http://www.bing.com/bingbot.htm)",
        "Sosospider+(+http://help.soso.com/webspider.htm)",
        "Mozilla/5.0 (compatible; Yahoo! Slurp China; http://misc.yahoo.com.cn/help.html)"
    ]
    ua = random.sample(uas)
    headers = {
        "user-agent": ua
    }
    return headers

if __name__ == '__main__':
    print(get_headers())

选项 D：

import random


def get_headers():
    uas = [
        "Mozilla/5.0 (compatible; Baiduspider/2.0; +http://www.baidu.com/search/spider.html)",
        "Mozilla/5.0 (compatible; Baiduspider-render/2.0; +http://www.baidu.com/search/spider.html)",
        "Baiduspider-image+(+http://www.baidu.com/search/spider.htm)",
        "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.81 YisouSpider/5.0 Safari/537.36",
        "Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)",
        "Mozilla/5.0 (compatible; Googlebot-Image/1.0; +http://www.google.com/bot.html)",
        "Sogou web spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)",
        "Sogou News Spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)",
        "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0);",
        "Mozilla/5.0 (compatible; bingbot/2.0; +http://www.bing.com/bingbot.htm)",
        "Sosospider+(+http://help.soso.com/webspider.htm)",
        "Mozilla/5.0 (compatible; Yahoo! Slurp China; http://misc.yahoo.com.cn/help.html)"
    ]
    ua = random.shuffle(uas)
    headers = {
        "user-agent": ua
    }
    return headers

if __name__ == '__main__':
    print(get_headers())

正确答案：A

第 4 题：

题目难度：2 星
题干（问题描述）：
在 1000 内，随机获取 6 个整数，要求各个数字互不重复。

选项 A：

from random import sample

ret = sample(range(1000), 6)
print(ret)

选项 B：

from random import sample

ret = random.sample(range(1000), 6)
print(ret)

选项 C：

import random

ret = random.shuffle(range(1000), 6)
print(ret)

选项 D：

import random

for i in range(1, 6):
    rand_num = random.randint(1, 1000)
    print(rand_num)

正确答案：A

第 5 题：

题目难度：3 星
题干（问题描述）：
随机生成一个由 1 和 0 组成的列表（长度要求为 20），其中 0 的个数不能超过 5 个。

选项 A：

import random

zero_max = 5
my_list = [1] * 20

zero_list = random.randint(0, zero_max)

zero_pos = random.sample(range(20), zero_list)
for pos in zero_pos:
    my_list[pos] = 0
print(my_list)

选项 B：

import random

zero_max = 5
my_list = [1] * 20

zero_list = random.randint(0, zero_max)

zero_pos = random.sample(range(10), zero_list)
for pos in zero_pos:
    my_list[pos] = 0
print(my_list)

选项 C：

import random

zero_max = 5
my_list = [0] * 20

zero_list = random.randint(0, zero_max)

zero_pos = random.sample(range(10), zero_list)
for pos in zero_pos:
    my_list[pos] = 0
print(my_list)

选项 D：

import random

zero_max = 5
my_list = [0] * 20

zero_list = random.randint(0, zero_max)

zero_pos = random.sample(range(10), zero_list)
for pos in zero_list:
    my_list[pos] = 0
print(my_list)

正确答案：A

试题仓库地址如下：

https://codechina.csdn.net/hihell/question

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