两个建议 * 学一下HTTP知识,学一下Xpath语法 * 学会断点调试 * * * `douban.com/subject{bianma}/comments` 这边 `subject/{bianma}`少东西,URL不对 response = requests.get(url=url, headers=headers) if not response.ok: # 对响应做个校验 raise Exception(f'url: {url}, status_code: {response.status_code}, content: {response.content.decode()}')