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

男娘i 2022-09-15 15:43 145阅读 0赞

本篇博客主要为 [https://bbs.csdn.net/skill/python][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
 *   *  第 1 题：
     *  第 2 题：
     *  第 3 题：
     *  第 4 题：
     *  第 5 题：
     *  试题仓库地址如下：

# 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 5 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：

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][https_codechina.csdn.net_hihell_question]

[https_bbs.csdn.net_skill_python]: https://bbs.csdn.net/skill/python
[https_codechina.csdn.net_hihell_question]: https://codechina.csdn.net/hihell/question