上传文件至 q2_1_crawler

This commit is contained in:
2026-07-04 21:55:59 +08:00
parent 13f3f2f7c7
commit a6d2db4a56
4 changed files with 177 additions and 0 deletions

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q2_1_crawler/ii.py Normal file
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import requests
from bs4 import BeautifulSoup as bs
import json
url = 'https://exam.detr.top/exam-b/movies'
headers = {'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/149.0.0.0 Safari/537.36 Edg/149.0.0.0',
'Referer':'https://exam.detr.top/exam-b/movies'}
req = requests.get(url, headers=headers)
req.encoding="utf-8"
data=[]
soup=bs(req.text,"html.parser")
# print(soup)
#id, title, director, year, rating, duration, genre, actors-count
items=soup.select('.item-row')
# movie_list=[]
for i in range(len(items)):
id=items[i].find("td",class_="item-id").get_text()
title=items[i].find("td",class_="item-title").get_text().strip()
director=items[i].find("td",class_="item-director").get_text().strip()
year=items[i].find("td",class_="item-year").get_text()
rating=items[i].find("td",class_="item-rating").get_text()
duration=items[i].find("td",class_="item-duration").get_text()
genre=items[i].find("td",class_="item-genre").get_text()
actors_count=items[i].find("td",class_="item-actors-count").get_text()
data.append({
"id":id,
"title":title,
"director":director,
"year":year,
"rating":rating,
"duration":duration,
"genre":genre,
"actors_count":actors_count
})
print(data)
# for tr in item:
# tds=tr.find_all("td")
# tds=list(tds)
# # print(tds)
# if len(tds)<8:
# continue
# movie={
# "id":tds[0].get_text(strip=True),
# "title":tds[1].get_text(strip=True),
# "director":tds[2].get_text(strip=True),
# "year":tds[3].get_text(strip=True),
# "rating":tds[4].get_text(strip=True),
# "duration":tds[5].get_text(strip=True),
# "genre":tds[6].get_text(strip=True),
# "actors_count":tds[7].get_text(strip=True)
# }
# movie_list.append(movie)
# print(movie_list)
with open('movie.json', 'w', encoding='utf-8') as f:
json.dump(data, f, ensure_ascii=False, indent=2)
with open("movie.html","w",encoding='utf-8') as f:
json.dump(data, f, ensure_ascii=False, indent=2)
# for i in range(len(items)):
# rank=i+1
# title=items[i].find("span",class_="title").get_text()
# actors=items[i].find("div",class_="bd").get_text().strip()
# try:
# actors=actors.split("主演:")[1].split("\n")[0]
# except:
# actors="无"
# quote=items[i].find("p",class_="quote").get_text().strip()
# data.append({
# "rank":rank,
# "title":title,
# "actors":actors,
# "quote":quote
# })

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q2_1_crawler/q2_2.py Normal file
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# ① 找出评分最高和最低的电影,打印电影名 + 评分。
# ② 统计各类型的电影数量,用字典格式输出。
# ③ 统计各导演的电影数量,用字典格式输出。
# ④ 统计 2020 年(含)以后上映的电影数量。
import json
with open('movie.json', 'r', encoding='utf-8') as f:
data=json.load(f)
# print(data)
sort_movie=sorted(data,key=lambda x:x["rating"])
min=sort_movie[0]
max=sort_movie[-1]
print("评分最低的电影",min["title"],min["rating"])
print("评分最高的电影",max["title"],max["rating"])
genre_shu={}
for g in data:
ge=g["genre"]
if ge in genre_shu:
genre_shu[ge]+=1
else:
genre_shu[ge]=1
print("各类型的电影数量",genre_shu)
director_shu={}
for d in data:
di=d["director"]
if di in director_shu:
director_shu[di]+=1
else:
director_shu[di]=1
print("各导演的电影数量",director_shu)
a=0
for y in data:
if int(y["year"]) >= 2020:
a+=1
print("2020 年(含)以后上映的电影数量",a)

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q2_1_crawler/sandian.py Normal file
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import matplotlib.pyplot as plt
import json
rating=[]
duration=[]
with open('movie.json', 'r', encoding='utf-8') as f:
data=json.load(f)
# print(data)
for i in data:
rating.append(i["rating"])
duration.append(i["duration"])
plt.figure(figsize=(12, 8))
plt.scatter(duration, rating,
c='red',
s=80, # 点的大小
alpha=0.6, # 透明度
edgecolors='white') # 点的边框
plt.title('时长与评分关系散点图', fontsize=14)
plt.xlabel('时长', fontsize=12)
plt.ylabel('评分', fontsize=12)
plt.grid(True, linestyle='--', alpha=0.5)
plt.show()
plt.savefig("q4_2_scatter.png",dpi=150,format='png')

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import matplotlib.pyplot as plt
import json
rating=[]
with open('movie.json', 'r', encoding='utf-8') as f:
data=json.load(f)
# print(data)
for i in data:
rating.append(i["rating"])
plt.figure(figsize=(12,8))
plt.hist(rating, # 数据
bins=10, # 分成几个柱子
color='#3498DB', # 颜色
edgecolor='white') # 柱子边框颜色
plt.title('评分分布', fontsize=14)
plt.xlabel('评分', fontsize=13)
plt.grid(True, linestyle='--', alpha=0.5, axis='y')
plt.show()
plt.savefig("q4_3a_hist.png",dpi=150,format='png')