Python文件操作完全指南

0331+2509165015/Text.2.py

@@ -0,0 +1,45 @@
+import requests
+import re
+import csv
+import time
+import random
+
+headers = {
+    "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36",
+    "Referer": "https://movie.douban.com/"
+}
+
+movie_pattern = re.compile(
+    r'<div class="item">.*?'
+    r'<em class="">(\d+)</em>.*?'
+    r'<span class="title">([^&]+?)</span>.*?'
+    r'<span class="other">/ ([^<]+?)</span>.*?'
+    r'<span class="rating_num" property="v:average">(\d+\.\d+)</span>',
+    re.S
+)
+
+def crawl_douban_top250():
+    all_movies = []
+    for page in range(0, 250, 25):
+        url = f"https://movie.douban.com/top250?start={page}&filter="
+        try:
+            time.sleep(random.uniform(1, 2))
+            response = requests.get(url=url, headers=headers, timeout=15)
+            response.raise_for_status()
+            page_source = response.text
+            movies = movie_pattern.findall(page_source)
+            all_movies.extend(movies)
+            print(f"第{page//25 + 1}页爬取成功")
+        except Exception as e:
+            print(f"第{page//25 + 1}页爬取失败：{e}")
+            continue
+
+    with open("movies.csv", "w", encoding="utf-8", newline="") as f:
+        writer = csv.writer(f)
+        writer.writerow(["排名", "中文名", "英文名", "评分"])
+        writer.writerows(all_movies)
+
+    print(f"全部爬取完成！共获取{len(all_movies)}部电影，已保存到movies.csv")
+
+if __name__ == "__main__":
+    crawl_douban_top250()