完成作业一

2509165025.CSV

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+import requests
+from bs4 import BeautifulSoup
+import csv
+import time
+
+def scrape_douban_top250():
+    headers = {
+        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36'
+    }
+    
+    with open('douban_movies.csv', 'w', newline='', encoding='utf-8') as csvfile:
+        fieldnames = ['排名', '电影名称', '评分', '评价人数', '经典台词']
+        writer = csv.DictWriter(csvfile, fieldnames=fieldnames)
+        writer.writeheader() 
+
+        for start in range(0, 250, 25):
+            url = f'https://movie.douban.com/top250?start={start}'
+            
+            try:
+                response = requests.get(url, headers=headers, timeout=10)
+                response.raise_for_status() 
+                
+                soup = BeautifulSoup(response.text, 'html.parser')
+                movies = soup.find_all('div', class_='item')
+
+                for movie in movies:
+                    rank = movie.find('em').text
+                    
+                    title = movie.find('span', class_='title').text
+
+                    rating = movie.find('span', class_='rating_num').text
+                    
+                    people_span = movie.find('div', class_='star').find_all('span')[-1]
+                    people = people_span.text.replace('人评价', '')
+                    
+                    quote_tag = movie.find('span', class_='inq')
+                    quote = quote_tag.text if quote_tag else "暂无"
+
+                    writer.writerow({
+                        '排名': rank,
+                        '电影名称': title,
+                        '评分': rating,
+                        '评价人数': people,
+                        '经典台词': quote
+                    })
+
+                print(f"第 {start//25 + 1} 页爬取完成，当前 URL: {url}")
+                time.sleep(1) 
+
+            except requests.exceptions.RequestException as e:
+                print(f"请求异常：{e}")
+                continue
+
+    print("✅ 所有数据已爬取完成，已保存为 douban_movies.csv")
+
+if __name__ == '__main__':
+    scrape_douban_top250()