8.(5.0分)字典dic='name':'tom',age:20,执 行语句dic['num门=dic.get'102,'001)后，dic的 值为：

这个语句是有语法错误的，应该是：

dic = {'name': 'tom', 'age': 20}
dic['num'] = dic.get('102', '001')

执行完这个语句后，`dic` 的值为 `{'name': 'tom', 'age': 20, 'num': '001'}`。因为 `dic.get('102', '001')` 中的键 `'102'` 在字典中不存在，所以返回默认值 `'001'`，然后将其作为值赋给键 `'num'`。

相关问题

import requests from bs4 import BeautifulSoup url = 'https://movie.douban.com/subject/30228394/' header = {'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64)\ AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36'} response = requests.get(url=url, headers=header) soup = BeautifulSoup(response.text, 'html.parser') tv_infor = {} # 1.获取电视剧名称 name = soup.find(property="v:itemreviewed").string # 根据属性property="v: itemreviewed"查找 tv_infor['name'] = name # 将电影名称加到字典tv_infor中 # 2.获取导演 director = soup.find(rel="v: directedBy").string # 根据属性re1="v:directedBy“查找 tv_infor['director'] = director # 3.获取编剧 soup_list = soup. findAll(class_="attrs")[1].findAll('a') writers = [elem. string for elem in soup_list] tv_infor['writers'] = writers # 4.获取演员 soup_list = soup. findAll(rel="v:starring") actors = [elem. string for elem in soup_list] tv_infor['actors'] = actors # 5.获取类型 soup_list = soup. findAll(property="v: genre") tv_type = [elem. string for elem in soup_list] tv_infor['type'] = tv_type # 6.首播时间 release_date = soup.find(property="v: initialReleaseDate").string tv_infor['release_date'] = release_date # 7.豆瓣评分 rating = soup.find(property="v: average").string tv_infor['rating'] = rating # 8.参评人数 votes = soup.find(property="v: votes").string tv_infor['votes'] = votes print("电视剧《觉醒年代》相关信息如下：") for key, value in tv_infor.items(): print(key, ":", value)运行报错

这段代码是Python 2.x的语法，但在Python 3.x中会出现语法错误。你需要将所有的print语句修改为函数调用的格式，即在print后添加括号，像这样：

import requests
from bs4 import BeautifulSoup

url = 'https://movie.douban.com/subject/30228394/'
header = {'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64)\  AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36'}
response = requests.get(url=url, headers=header)
soup = BeautifulSoup(response.text, 'html.parser')
tv_infor = {}

# 1.获取电视剧名称
name = soup.find(property="v:itemreviewed").string
tv_infor['name'] = name

# 2.获取导演
director = soup.find(rel="v: directedBy").string
tv_infor['director'] = director

# 3.获取编剧
soup_list = soup.findAll(class_="attrs")[1].findAll('a')
writers = [elem.string for elem in soup_list]
tv_infor['writers'] = writers

# 4.获取演员
soup_list = soup.findAll(rel="v:starring")
actors = [elem.string for elem in soup_list]
tv_infor['actors'] = actors

# 5.获取类型
soup_list = soup.findAll(property="v:genre")
tv_type = [elem.string for elem in soup_list]
tv_infor['type'] = tv_type

# 6.首播时间
release_date = soup.find(property="v:initialReleaseDate").string
tv_infor['release_date'] = release_date

# 7.豆瓣评分
rating = soup.find(property="v:average").string
tv_infor['rating'] = rating

# 8.参评人数
votes = soup.find(property="v:votes").string
tv_infor['votes'] = votes

print("电视剧《觉醒年代》相关信息如下：")
for key, value in tv_infor.items():
    print(key, ":", value)

这样就可以正常运行了。

import requests from bs4 import BeautifulSoup url = 'https://movie.douban.com/subject/30228394/' header = {'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64)\ AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36'} response = requests.get(url=url, headers=header) soup = BeautifulSoup(response.text, 'html.parser') tv_infor = {} # 1.获取电视剧名称 name = soup.find(property="v:itemreviewed").string # 根据属性property="v: "查找 tv_infor['name'] = name # 将电影名称加到字典tv_infor中 # 2.获取导演 director = soup.find(rel="v: directedBy").string # 根据属性re1="v:directedBy“查找 tv_infor['director'] = director # 3.获取编剧 soup_list = soup. findAll(class_="attrs")[1].findAll('a') writers = [elem. string for elem in soup_list] tv_infor['writers'] = writers # 4.获取演员 soup_list = soup. findAll(rel="v:starring") actors = [elem. string for elem in soup_list] tv_infor['actors'] = actors # 5.获取类型 soup_list = soup. findAll(property="v: genre") tv_type = [elem. string for elem in soup_list] tv_infor['type'] = tv_type # 6.首播时间 release_date = soup.find(property="v: initialReleaseDate").string tv_infor['release_date'] = release_date # 7.豆瓣评分 rating = soup.find(property="v: average").string tv_infor['rating'] = rating # 8.参评人数 votes = soup.find(property="v: votes").string tv_infor['votes'] = votes print("电视剧《觉醒年代》相关信息如下：") for key, value in tv_infor.items(): print(key, ":", value)

这段代码实现了爬取豆瓣电视剧《觉醒年代》的相关信息并存储在一个字典中。具体的实现过程如下：

1. 引入requests和BeautifulSoup模块，并定义目标url和请求头。
2. 发送请求获取响应，并使用BeautifulSoup解析响应的html文本。
3. 根据html结构和标签属性，使用find()和findAll()方法来定位需要的信息。
4. 将获取到的信息存储在一个字典中，键为信息的名称，值为信息的内容。
5. 最后使用for循环遍历字典，并按照指定格式输出信息。

需要注意的是，在使用BeautifulSoup解析html文本时，需要指定解析器类型，这里使用的是'html.parser'。在实际使用中，可能需要根据不同的网站和html结构来选择不同的解析器类型。