我在同时下载多张图片，但返回的是respons.ok和200状态码，然而下载的文件大小为0字节。我的代码如下：
pic_list=['https://i8.amplience.net/i/nlyscandinavia/146368-0014_01/i-straight-crepe-pant/', 'https://i8.amplience.net/i/nlyscandinavia/146368-0014_02/i-straight-crepe-pant/', 'https://i8.amplience.net/i/nlyscandinavia/146368-0014_04/i-straight-crepe-pant/', 'https://i8.amplience.net/i/nlyscandinavia/146368-0014_05/i-straight-crepe-pant/']for pic_url in pic_list: url = str(pic_url).replace(' ', '') print('pic_url : ' + str(url)) folder = full_move_dir + '/' + str(folder_count) print('after creating folder' + folder) os.makedirs(folder, exist_ok=True) try: pic_ext=str(pic_url.split('.')[-1]) final_pic_ext = pic_ext.split('/')[0] print(type(final_pic_ext)) print(final_pic_ext) if final_pic_ext != 'jpeg' and final_pic_ext != 'jpg' and final_pic_ext != 'png': final_pic_ext = 'jpeg' print(final_pic_ext) pic_name = str(pic_count) + '-' + str(file_name_for_folder[-1]) + '.' + str(final_pic_ext) except Exception as e: print(e) with open(os.path.join(folder, pic_name), 'wb') as handle: if url.find('http') == -1: url_h = 'http://' + url try: headers = { 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:71.0) Gecko/20100101 Firefox/71.0'} r = requests.get(url_h, headers=headers) print(r) if not r.ok: print("NO OK res"+str(r)) else: pic_count = pic_count + 1 handle.write(r) sleep(1) except Exception as e: print('Invalid URL with http') finally: pass else: try: headers = { 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:71.0) Gecko/20100101 Firefox/71.0'} r = requests.get(url, headers=headers) print(r) if not r.ok: print("NO OK res"+str(r)) else: pic_count = pic_count + 1 handle.write(r) sleep(1) except Exception as e: print('Invalid URL with http') finally: pass我添加了头信息，因为之前遇到权限被拒绝的问题，后来找到了这个解决方案。现在这个方法可以成功下载单张照片，但无法下载多张图片。
回答：
变量 r 是一个 requests对象。图片内容存储在 r.content 中。
这里有一个简单的解决方案来解决你的问题
import requestsimport ospic_list=['https://i8.amplience.net/i/nlyscandinavia/146368-0014_01/i-straight-crepe-pant/', 'https://i8.amplience.net/i/nlyscandinavia/146368-0014_02/i-straight-crepe-pant/', 'https://i8.amplience.net/i/nlyscandinavia/146368-0014_04/i-straight-crepe-pant/', 'https://i8.amplience.net/i/nlyscandinavia/146368-0014_05/i-straight-crepe-pant/']DIR_TO_SAVE = '.'headers = { 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:71.0) Gecko/20100101 Firefox/71.0'}i=0for pic_url in pic_list: url = pic_url.strip() print('pic_url: '+url) if url[-1] == '/': filename = url.rstrip('/').split('/')[-1]+str(i)+'.jpeg' i+=1 else: filename = url.split('/')[-1] output = requests.get(url, headers=headers) if output.status_code == 200: with open(os.path.join(DIR_TO_SAVE, filename), 'wb') as f: f.write(output.content) else: print("Couldnt get file: "+url)