{"id":1077402,"date":"2025-01-08T12:02:00","date_gmt":"2025-01-08T04:02:00","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1077402.html"},"modified":"2025-01-08T12:02:02","modified_gmt":"2025-01-08T04:02:02","slug":"python%e5%a6%82%e4%bd%95%e4%b8%8b%e8%bd%bd%e7%bd%91%e7%bb%9c%e5%9b%be%e7%89%87%e5%a4%a7%e5%b0%8f-2","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1077402.html","title":{"rendered":"python\u5982\u4f55\u4e0b\u8f7d\u7f51\u7edc\u56fe\u7247\u5927\u5c0f"},"content":{"rendered":"

\"python\u5982\u4f55\u4e0b\u8f7d\u7f51\u7edc\u56fe\u7247\u5927\u5c0f\"<\/p>\n

Python\u4e0b\u8f7d\u7f51\u7edc\u56fe\u7247\u7684\u5927\u5c0f\uff1a\u4f7f\u7528requests\u5e93\u3001\u4f7f\u7528urllib\u5e93\u3001\u4f7f\u7528AI<\/a>ohttp\u5e93<\/strong><\/p>\n<\/p>\n

\u5728Python\u4e2d\uff0c\u6709\u591a\u79cd\u65b9\u6cd5\u53ef\u4ee5\u4e0b\u8f7d\u7f51\u7edc\u56fe\u7247\u7684\u5927\u5c0f\u3002\u4f7f\u7528requests\u5e93\u3001\u4f7f\u7528urllib\u5e93\u3001\u4f7f\u7528aiohttp\u5e93<\/strong>\u3002\u4e0b\u9762\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528\u8fd9\u4e9b\u65b9\u6cd5\u5b9e\u73b0\u76ee\u6807\uff0c\u5e76\u901a\u8fc7\u4ee3\u7801\u793a\u4f8b\u8fdb\u884c\u8bf4\u660e\u3002\u9996\u5148\uff0c\u6211\u4eec\u5c06\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528requests\u5e93\u4e0b\u8f7d\u7f51\u7edc\u56fe\u7247\u7684\u5927\u5c0f\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u4f7f\u7528requests\u5e93<\/h3>\n<\/p>\n

requests\u5e93\u662f\u4e00\u4e2a\u7b80\u5355\u6613\u7528\u7684HTTP\u5e93\uff0c\u7528\u4e8e\u53d1\u9001HTTP\u8bf7\u6c42\u3002\u5728\u4f7f\u7528requests\u5e93\u4e0b\u8f7d\u7f51\u7edc\u56fe\u7247\u65f6\uff0c\u53ef\u4ee5\u5148\u53d1\u9001HEAD\u8bf7\u6c42\u83b7\u53d6\u56fe\u7247\u7684\u5927\u5c0f\u4fe1\u606f\uff0c\u7136\u540e\u518d\u51b3\u5b9a\u662f\u5426\u4e0b\u8f7d\u56fe\u7247\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528requests\u5e93\u7684\u8be6\u7ec6\u6b65\u9aa4\uff1a<\/p>\n<\/p>\n

    \n
  1. \u5b89\u88c5requests\u5e93<\/li>\n<\/ol>\n

    pip install requests<\/p>\n
    <\/code><\/pre>\n<\/p>\n
      \n
    1. \u4f7f\u7528requests\u5e93\u4e0b\u8f7d\u56fe\u7247\u5927\u5c0f<\/li>\n<\/ol>\n
      import requests<\/p>\n
      def get_image_size(url):<\/p>\n
          response = requests.head(url)<\/p>\n
          size = response.headers.get('content-length', None)<\/p>\n
          if size:<\/p>\n
              return int(size)<\/p>\n
          else:<\/p>\n
              return None<\/p>\n
      \u793a\u4f8b<\/strong><\/h2>\n
      url = 'https:\/\/example.com\/image.jpg'<\/p>\n
      size = get_image_size(url)<\/p>\n
      if size:<\/p>\n
          print(f'\u56fe\u7247\u5927\u5c0f\u4e3a: {size} \u5b57\u8282')<\/p>\n
      else:<\/p>\n
          print('\u65e0\u6cd5\u83b7\u53d6\u56fe\u7247\u5927\u5c0f')<\/p>\n
      <\/code><\/pre>\n<\/p>\n
      \u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528requests.head()\u65b9\u6cd5\u53d1\u9001HEAD\u8bf7\u6c42\uff0c\u5e76\u4ece\u54cd\u5e94\u5934\u4e2d\u83b7\u53d6content-length\u5b57\u6bb5\uff0c\u4ee5\u786e\u5b9a\u56fe\u7247\u7684\u5927\u5c0f\u3002\u5982\u679ccontent-length\u5b57\u6bb5\u4e0d\u5b58\u5728\uff0c\u5219\u8fd4\u56deNone\u3002<\/p>\n<\/p>\n
      \u4e8c\u3001\u4f7f\u7528urllib\u5e93<\/h3>\n<\/p>\n
      urllib\u662fPython\u6807\u51c6\u5e93\u4e2d\u7684\u4e00\u4e2a\u6a21\u5757\uff0c\u7528\u4e8e\u5904\u7406URL\u548cHTTP\u8bf7\u6c42\u3002\u4e0erequests\u5e93\u7c7b\u4f3c\uff0curllib\u5e93\u4e5f\u53ef\u4ee5\u53d1\u9001HTTP\u8bf7\u6c42\u5e76\u83b7\u53d6\u54cd\u5e94\u5934\u4fe1\u606f\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528urllib\u5e93\u4e0b\u8f7d\u7f51\u7edc\u56fe\u7247\u5927\u5c0f\u7684\u8be6\u7ec6\u6b65\u9aa4\uff1a<\/p>\n<\/p>\n
        \n
      1. \u5bfc\u5165urllib\u5e93<\/li>\n<\/ol>\n
        import urllib.request<\/p>\n
        <\/code><\/pre>\n<\/p>\n
          \n
        1. \u4f7f\u7528urllib\u5e93\u4e0b\u8f7d\u56fe\u7247\u5927\u5c0f<\/li>\n<\/ol>\n
          def get_image_size(url):<\/p>\n
              request = urllib.request.Request(url, method='HEAD')<\/p>\n
              with urllib.request.urlopen(request) as response:<\/p>\n
                  size = response.getheader('Content-Length')<\/p>\n
                  if size:<\/p>\n
                      return int(size)<\/p>\n
                  else:<\/p>\n
                      return None<\/p>\n
          \u793a\u4f8b<\/strong><\/h2>\n
          url = 'https:\/\/example.com\/image.jpg'<\/p>\n
          size = get_image_size(url)<\/p>\n
          if size:<\/p>\n
              print(f'\u56fe\u7247\u5927\u5c0f\u4e3a: {size} \u5b57\u8282')<\/p>\n
          else:<\/p>\n
              print('\u65e0\u6cd5\u83b7\u53d6\u56fe\u7247\u5927\u5c0f')<\/p>\n
          <\/code><\/pre>\n<\/p>\n
          \u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528urllib.request.Request()\u65b9\u6cd5\u521b\u5efa\u4e00\u4e2aHEAD\u8bf7\u6c42\uff0c\u5e76\u901a\u8fc7urllib.request.urlopen()\u65b9\u6cd5\u53d1\u9001\u8bf7\u6c42\u3002\u7136\u540e\uff0c\u4ece\u54cd\u5e94\u5934\u4e2d\u83b7\u53d6Content-Length\u5b57\u6bb5\uff0c\u4ee5\u786e\u5b9a\u56fe\u7247\u7684\u5927\u5c0f\u3002\u5982\u679cContent-Length\u5b57\u6bb5\u4e0d\u5b58\u5728\uff0c\u5219\u8fd4\u56deNone\u3002<\/p>\n<\/p>\n
          \u4e09\u3001\u4f7f\u7528aiohttp\u5e93<\/h3>\n<\/p>\n
          aiohttp\u662f\u4e00\u4e2a\u652f\u6301\u5f02\u6b65HTTP\u8bf7\u6c42\u7684\u5e93\uff0c\u9002\u7528\u4e8e\u9700\u8981\u5e76\u53d1\u5904\u7406\u7684\u573a\u666f\u3002\u5728\u4f7f\u7528aiohttp\u5e93\u4e0b\u8f7d\u7f51\u7edc\u56fe\u7247\u5927\u5c0f\u65f6\uff0c\u53ef\u4ee5\u5148\u53d1\u9001HEAD\u8bf7\u6c42\u83b7\u53d6\u56fe\u7247\u7684\u5927\u5c0f\u4fe1\u606f\uff0c\u7136\u540e\u518d\u51b3\u5b9a\u662f\u5426\u4e0b\u8f7d\u56fe\u7247\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528aiohttp\u5e93\u7684\u8be6\u7ec6\u6b65\u9aa4\uff1a<\/p>\n<\/p>\n
            \n
          1. \u5b89\u88c5aiohttp\u5e93<\/li>\n<\/ol>\n
            pip install aiohttp<\/p>\n
            <\/code><\/pre>\n<\/p>\n
              \n
            1. \u4f7f\u7528aiohttp\u5e93\u4e0b\u8f7d\u56fe\u7247\u5927\u5c0f<\/li>\n<\/ol>\n
              import aiohttp<\/p>\n
              import asyncio<\/p>\n
              async def get_image_size(url):<\/p>\n
                  async with aiohttp.ClientSession() as session:<\/p>\n
                      async with session.head(url) as response:<\/p>\n
                          size = response.headers.get('Content-Length', None)<\/p>\n
                          if size:<\/p>\n
                              return int(size)<\/p>\n
                          else:<\/p>\n
                              return None<\/p>\n
              \u793a\u4f8b<\/strong><\/h2>\n
              url = 'https:\/\/example.com\/image.jpg'<\/p>\n
              size = asyncio.run(get_image_size(url))<\/p>\n
              if size:<\/p>\n
                  print(f'\u56fe\u7247\u5927\u5c0f\u4e3a: {size} \u5b57\u8282')<\/p>\n
              else:<\/p>\n
                  print('\u65e0\u6cd5\u83b7\u53d6\u56fe\u7247\u5927\u5c0f')<\/p>\n
              <\/code><\/pre>\n<\/p>\n
              \u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528aiohttp.ClientSession()\u521b\u5efa\u4e00\u4e2a\u4f1a\u8bdd\uff0c\u5e76\u901a\u8fc7session.head()\u65b9\u6cd5\u53d1\u9001HEAD\u8bf7\u6c42\u3002\u7136\u540e\uff0c\u4ece\u54cd\u5e94\u5934\u4e2d\u83b7\u53d6Content-Length\u5b57\u6bb5\uff0c\u4ee5\u786e\u5b9a\u56fe\u7247\u7684\u5927\u5c0f\u3002\u5982\u679cContent-Length\u5b57\u6bb5\u4e0d\u5b58\u5728\uff0c\u5219\u8fd4\u56deNone\u3002<\/p>\n<\/p>\n
              \u56db\u3001\u4e0b\u8f7d\u56fe\u7247\u5e76\u83b7\u53d6\u5927\u5c0f<\/h3>\n<\/p>\n
              \u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u53ef\u80fd\u9700\u8981\u4e0b\u8f7d\u56fe\u7247\u5e76\u83b7\u53d6\u5176\u5927\u5c0f\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528requests\u5e93\u3001urllib\u5e93\u548caiohttp\u5e93\u4e0b\u8f7d\u56fe\u7247\u5e76\u83b7\u53d6\u5927\u5c0f\u7684\u793a\u4f8b\u4ee3\u7801\u3002<\/p>\n<\/p>\n
              \u4f7f\u7528requests\u5e93\u4e0b\u8f7d\u56fe\u7247\u5e76\u83b7\u53d6\u5927\u5c0f<\/h4>\n<\/p>\n
              import requests<\/p>\n
              def download_image(url, save_path):<\/p>\n
                  response = requests.get(url, stream=True)<\/p>\n
                  size = response.headers.get('content-length')<\/p>\n
                  if size:<\/p>\n
                      size = int(size)<\/p>\n
                  else:<\/p>\n
                      size = None<\/p>\n
                  with open(save_path, 'wb') as file:<\/p>\n
                      for chunk in response.iter_content(1024):<\/p>\n
                          file.write(chunk)<\/p>\n
                  return size<\/p>\n
              \u793a\u4f8b<\/strong><\/h2>\n
              url = 'https:\/\/example.com\/image.jpg'<\/p>\n
              save_path = 'image.jpg'<\/p>\n
              size = download_image(url, save_path)<\/p>\n
              if size:<\/p>\n
                  print(f'\u56fe\u7247\u5927\u5c0f\u4e3a: {size} \u5b57\u8282')<\/p>\n
              else:<\/p>\n
                  print('\u65e0\u6cd5\u83b7\u53d6\u56fe\u7247\u5927\u5c0f')<\/p>\n
              <\/code><\/pre>\n<\/p>\n
              \u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528requests.get()\u65b9\u6cd5\u53d1\u9001GET\u8bf7\u6c42\uff0c\u5e76\u901a\u8fc7stream=True\u53c2\u6570\u5b9e\u73b0\u6d41\u5f0f\u4e0b\u8f7d\u3002\u7136\u540e\uff0c\u5c06\u54cd\u5e94\u5185\u5bb9\u5199\u5165\u672c\u5730\u6587\u4ef6\uff0c\u5e76\u4ece\u54cd\u5e94\u5934\u4e2d\u83b7\u53d6Content-Length\u5b57\u6bb5\uff0c\u4ee5\u786e\u5b9a\u56fe\u7247\u7684\u5927\u5c0f\u3002<\/p>\n<\/p>\n
              \u4f7f\u7528urllib\u5e93\u4e0b\u8f7d\u56fe\u7247\u5e76\u83b7\u53d6\u5927\u5c0f<\/h4>\n<\/p>\n
              import urllib.request<\/p>\n
              def download_image(url, save_path):<\/p>\n
                  request = urllib.request.Request(url)<\/p>\n
                  with urllib.request.urlopen(request) as response:<\/p>\n
                      size = response.getheader('Content-Length')<\/p>\n
                      if size:<\/p>\n
                          size = int(size)<\/p>\n
                      else:<\/p>\n
                          size = None<\/p>\n
                      with open(save_path, 'wb') as file:<\/p>\n
                          file.write(response.read())<\/p>\n
                  return size<\/p>\n
              \u793a\u4f8b<\/strong><\/h2>\n
              url = 'https:\/\/example.com\/image.jpg'<\/p>\n
              save_path = 'image.jpg'<\/p>\n
              size = download_image(url, save_path)<\/p>\n
              if size:<\/p>\n
                  print(f'\u56fe\u7247\u5927\u5c0f\u4e3a: {size} \u5b57\u8282')<\/p>\n
              else:<\/p>\n
                  print('\u65e0\u6cd5\u83b7\u53d6\u56fe\u7247\u5927\u5c0f')<\/p>\n
              <\/code><\/pre>\n<\/p>\n
              \u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528urllib.request.Request()\u65b9\u6cd5\u521b\u5efa\u4e00\u4e2aGET\u8bf7\u6c42\uff0c\u5e76\u901a\u8fc7urllib.request.urlopen()\u65b9\u6cd5\u53d1\u9001\u8bf7\u6c42\u3002\u7136\u540e\uff0c\u5c06\u54cd\u5e94\u5185\u5bb9\u5199\u5165\u672c\u5730\u6587\u4ef6\uff0c\u5e76\u4ece\u54cd\u5e94\u5934\u4e2d\u83b7\u53d6Content-Length\u5b57\u6bb5\uff0c\u4ee5\u786e\u5b9a\u56fe\u7247\u7684\u5927\u5c0f\u3002<\/p>\n<\/p>\n
              \u4f7f\u7528aiohttp\u5e93\u4e0b\u8f7d\u56fe\u7247\u5e76\u83b7\u53d6\u5927\u5c0f<\/h4>\n<\/p>\n
              import aiohttp<\/p>\n
              import asyncio<\/p>\n
              async def download_image(url, save_path):<\/p>\n
                  async with aiohttp.ClientSession() as session:<\/p>\n
                      async with session.get(url) as response:<\/p>\n
                          size = response.headers.get('Content-Length', None)<\/p>\n
                          if size:<\/p>\n
                              size = int(size)<\/p>\n
                          else:<\/p>\n
                              size = None<\/p>\n
                          with open(save_path, 'wb') as file:<\/p>\n
                              while True:<\/p>\n
                                  chunk = await response.content.read(1024)<\/p>\n
                                  if not chunk:<\/p>\n
                                      break<\/p>\n
                                  file.write(chunk)<\/p>\n
                  return size<\/p>\n
              \u793a\u4f8b<\/strong><\/h2>\n
              url = 'https:\/\/example.com\/image.jpg'<\/p>\n
              save_path = 'image.jpg'<\/p>\n
              size = asyncio.run(download_image(url, save_path))<\/p>\n
              if size:<\/p>\n
                  print(f'\u56fe\u7247\u5927\u5c0f\u4e3a: {size} \u5b57\u8282')<\/p>\n
              else:<\/p>\n
                  print('\u65e0\u6cd5\u83b7\u53d6\u56fe\u7247\u5927\u5c0f')<\/p>\n
              <\/code><\/pre>\n<\/p>\n
              \u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528aiohttp.ClientSession()\u521b\u5efa\u4e00\u4e2a\u4f1a\u8bdd\uff0c\u5e76\u901a\u8fc7session.get()\u65b9\u6cd5\u53d1\u9001GET\u8bf7\u6c42\u3002\u7136\u540e\uff0c\u5c06\u54cd\u5e94\u5185\u5bb9\u5199\u5165\u672c\u5730\u6587\u4ef6\uff0c\u5e76\u4ece\u54cd\u5e94\u5934\u4e2d\u83b7\u53d6Content-Length\u5b57\u6bb5\uff0c\u4ee5\u786e\u5b9a\u56fe\u7247\u7684\u5927\u5c0f\u3002<\/p>\n<\/p>\n
              \u4e94\u3001\u5904\u7406\u56fe\u7247\u5927\u5c0f\u83b7\u53d6\u5931\u8d25\u7684\u60c5\u51b5<\/h3>\n<\/p>\n
              \u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u53ef\u80fd\u65e0\u6cd5\u4ece\u54cd\u5e94\u5934\u4e2d\u83b7\u53d6\u56fe\u7247\u7684\u5927\u5c0f\u3002\u4f8b\u5982\uff0c\u67d0\u4e9b\u670d\u52a1\u5668\u53ef\u80fd\u4e0d\u4f1a\u8fd4\u56deContent-Length\u5b57\u6bb5\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u53ef\u4ee5\u4e0b\u8f7d\u56fe\u7247\u5e76\u8ba1\u7b97\u5176\u5927\u5c0f\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528requests\u5e93\u3001urllib\u5e93\u548caiohttp\u5e93\u4e0b\u8f7d\u56fe\u7247\u5e76\u8ba1\u7b97\u5176\u5927\u5c0f\u7684\u793a\u4f8b\u4ee3\u7801\u3002<\/p>\n<\/p>\n
              \u4f7f\u7528requests\u5e93\u4e0b\u8f7d\u56fe\u7247\u5e76\u8ba1\u7b97\u5927\u5c0f<\/h4>\n<\/p>\n
              import requests<\/p>\n
              def download_image_and_calculate_size(url, save_path):<\/p>\n
                  response = requests.get(url, stream=True)<\/p>\n
                  size = 0<\/p>\n
                  with open(save_path, 'wb') as file:<\/p>\n
                      for chunk in response.iter_content(1024):<\/p>\n
                          file.write(chunk)<\/p>\n
                          size += len(chunk)<\/p>\n
                  return size<\/p>\n
              \u793a\u4f8b<\/strong><\/h2>\n
              url = 'https:\/\/example.com\/image.jpg'<\/p>\n
              save_path = 'image.jpg'<\/p>\n
              size = download_image_and_calculate_size(url, save_path)<\/p>\n
              print(f'\u56fe\u7247\u5927\u5c0f\u4e3a: {size} \u5b57\u8282')<\/p>\n
              <\/code><\/pre>\n<\/p>\n
              \u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528requests.get()\u65b9\u6cd5\u53d1\u9001GET\u8bf7\u6c42\uff0c\u5e76\u901a\u8fc7stream=True\u53c2\u6570\u5b9e\u73b0\u6d41\u5f0f\u4e0b\u8f7d\u3002\u7136\u540e\uff0c\u5c06\u54cd\u5e94\u5185\u5bb9\u5199\u5165\u672c\u5730\u6587\u4ef6\uff0c\u5e76\u8ba1\u7b97\u4e0b\u8f7d\u7684\u5b57\u8282\u6570\uff0c\u4ee5\u786e\u5b9a\u56fe\u7247\u7684\u5927\u5c0f\u3002<\/p>\n<\/p>\n
              \u4f7f\u7528urllib\u5e93\u4e0b\u8f7d\u56fe\u7247\u5e76\u8ba1\u7b97\u5927\u5c0f<\/h4>\n<\/p>\n
              import urllib.request<\/p>\n
              def download_image_and_calculate_size(url, save_path):<\/p>\n
                  request = urllib.request.Request(url)<\/p>\n
                  size = 0<\/p>\n
                  with urllib.request.urlopen(request) as response:<\/p>\n
                      with open(save_path, 'wb') as file:<\/p>\n
                          while True:<\/p>\n
                              chunk = response.read(1024)<\/p>\n
                              if not chunk:<\/p>\n
                                  break<\/p>\n
                              file.write(chunk)<\/p>\n
                              size += len(chunk)<\/p>\n
                  return size<\/p>\n
              \u793a\u4f8b<\/strong><\/h2>\n
              url = 'https:\/\/example.com\/image.jpg'<\/p>\n
              save_path = 'image.jpg'<\/p>\n
              size = download_image_and_calculate_size(url, save_path)<\/p>\n
              print(f'\u56fe\u7247\u5927\u5c0f\u4e3a: {size} \u5b57\u8282')<\/p>\n
              <\/code><\/pre>\n<\/p>\n
              \u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528urllib.request.Request()\u65b9\u6cd5\u521b\u5efa\u4e00\u4e2aGET\u8bf7\u6c42\uff0c\u5e76\u901a\u8fc7urllib.request.urlopen()\u65b9\u6cd5\u53d1\u9001\u8bf7\u6c42\u3002\u7136\u540e\uff0c\u5c06\u54cd\u5e94\u5185\u5bb9\u5199\u5165\u672c\u5730\u6587\u4ef6\uff0c\u5e76\u8ba1\u7b97\u4e0b\u8f7d\u7684\u5b57\u8282\u6570\uff0c\u4ee5\u786e\u5b9a\u56fe\u7247\u7684\u5927\u5c0f\u3002<\/p>\n<\/p>\n
              \u4f7f\u7528aiohttp\u5e93\u4e0b\u8f7d\u56fe\u7247\u5e76\u8ba1\u7b97\u5927\u5c0f<\/h4>\n<\/p>\n
              import aiohttp<\/p>\n
              import asyncio<\/p>\n
              async def download_image_and_calculate_size(url, save_path):<\/p>\n
                  size = 0<\/p>\n
                  async with aiohttp.ClientSession() as session:<\/p>\n
                      async with session.get(url) as response:<\/p>\n
                          with open(save_path, 'wb') as file:<\/p>\n
                              while True:<\/p>\n
                                  chunk = await response.content.read(1024)<\/p>\n
                                  if not chunk:<\/p>\n
                                      break<\/p>\n
                                  file.write(chunk)<\/p>\n
                                  size += len(chunk)<\/p>\n
                  return size<\/p>\n
              \u793a\u4f8b<\/strong><\/h2>\n
              url = 'https:\/\/example.com\/image.jpg'<\/p>\n
              save_path = 'image.jpg'<\/p>\n
              size = asyncio.run(download_image_and_calculate_size(url, save_path))<\/p>\n
              print(f'\u56fe\u7247\u5927\u5c0f\u4e3a: {size} \u5b57\u8282')<\/p>\n
              <\/code><\/pre>\n<\/p>\n
              \u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528aiohttp.ClientSession()\u521b\u5efa\u4e00\u4e2a\u4f1a\u8bdd\uff0c\u5e76\u901a\u8fc7session.get()\u65b9\u6cd5\u53d1\u9001GET\u8bf7\u6c42\u3002\u7136\u540e\uff0c\u5c06\u54cd\u5e94\u5185\u5bb9\u5199\u5165\u672c\u5730\u6587\u4ef6\uff0c\u5e76\u8ba1\u7b97\u4e0b\u8f7d\u7684\u5b57\u8282\u6570\uff0c\u4ee5\u786e\u5b9a\u56fe\u7247\u7684\u5927\u5c0f\u3002<\/p>\n<\/p>\n
              \u603b\u7ed3<\/h3>\n<\/p>\n
              \u672c\u6587\u8be6\u7ec6\u4ecb\u7ecd\u4e86\u5982\u4f55\u4f7f\u7528requests\u5e93\u3001urllib\u5e93\u548caiohttp\u5e93\u4e0b\u8f7d\u7f51\u7edc\u56fe\u7247\u7684\u5927\u5c0f\u3002\u4f7f\u7528requests\u5e93\u3001\u4f7f\u7528urllib\u5e93\u3001\u4f7f\u7528aiohttp\u5e93<\/strong>\u90fd\u662f\u5b9e\u73b0\u8fd9\u4e00\u76ee\u6807\u7684\u6709\u6548\u65b9\u6cd5\u3002\u901a\u8fc7\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u6211\u4eec\u53ef\u4ee5\u5148\u53d1\u9001HEAD\u8bf7\u6c42\u83b7\u53d6\u56fe\u7247\u7684\u5927\u5c0f\u4fe1\u606f\uff0c\u7136\u540e\u518d\u51b3\u5b9a\u662f\u5426\u4e0b\u8f7d\u56fe\u7247\u3002\u6b64\u5916\uff0c\u5728\u65e0\u6cd5\u83b7\u53d6\u56fe\u7247\u5927\u5c0f\u7684\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u4e0b\u8f7d\u56fe\u7247\u5e76\u8ba1\u7b97\u5176\u5927\u5c0f\u3002\u5e0c\u671b\u672c\u6587\u5bf9\u60a8\u6709\u6240\u5e2e\u52a9\uff0c\u5e76\u80fd\u89e3\u51b3\u60a8\u5728\u4e0b\u8f7d\u7f51\u7edc\u56fe\u7247\u5927\u5c0f\u65f6\u9047\u5230\u7684\u95ee\u9898\u3002<\/p>\n<\/p>\n
              \u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
               \u5982\u4f55\u4f7f\u7528Python\u4e0b\u8f7d\u7279\u5b9a\u5927\u5c0f\u7684\u7f51\u7edc\u56fe\u7247\uff1f<\/strong>
              \u8981\u4e0b\u8f7d\u7279\u5b9a\u5927\u5c0f\u7684\u7f51\u7edc\u56fe\u7247\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528Python\u7684requests\u5e93\u83b7\u53d6\u56fe\u7247\uff0c\u5e76\u7ed3\u5408PIL\u5e93\uff08Pillow\uff09\u6765\u68c0\u67e5\u548c\u8c03\u6574\u56fe\u7247\u7684\u5927\u5c0f\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\u4ee3\u7801\uff0c\u60a8\u53ef\u4ee5\u6839\u636e\u9700\u8981\u4fee\u6539\u76ee\u6807\u5c3a\u5bf8\uff1a<\/p>\n
              import requests\nfrom PIL import Image\nfrom io import BytesIO\n\nurl = '\u56fe\u7247URL'\nresponse = requests.get(url)\nimg = Image.open(BytesIO(response.content))\n\n# \u8c03\u6574\u5230\u6307\u5b9a\u5927\u5c0f\ntarget_size = (\u5bbd\u5ea6, \u9ad8\u5ea6)  # \u4f8b\u5982 (800, 600)\nimg = img.resize(target_size)\nimg.save('downloaded_image.jpg')\n<\/code><\/pre>\n
              \u5982\u4f55\u68c0\u67e5\u56fe\u7247\u4e0b\u8f7d\u540e\u7684\u6587\u4ef6\u5927\u5c0f\uff1f<\/strong>
              \u4e0b\u8f7d\u56fe\u7247\u540e\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528os\u5e93\u6765\u68c0\u67e5\u6587\u4ef6\u5927\u5c0f\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n
              import os\n\nfile_path = 'downloaded_image.jpg'\nfile_size = os.path.getsize(file_path)\nprint(f"\u6587\u4ef6\u5927\u5c0f\u4e3a: {file_size} \u5b57\u8282")\n<\/code><\/pre>\n
              \u4f7f\u7528Python\u4e0b\u8f7d\u56fe\u7247\u65f6\uff0c\u6709\u54ea\u4e9b\u5e38\u89c1\u7684\u9519\u8bef\u9700\u8981\u907f\u514d\uff1f<\/strong>
              \u5728\u4e0b\u8f7d\u7f51\u7edc\u56fe\u7247\u65f6\uff0c\u5e38\u89c1\u9519\u8bef\u5305\u62ec\uff1a  <\/p>\n
                \n
              1. URL\u9519\u8bef\uff1a\u786e\u4fdd\u63d0\u4f9b\u7684\u56fe\u7247URL\u662f\u6709\u6548\u7684\uff0c\u5e76\u4e14\u80fd\u591f\u516c\u5f00\u8bbf\u95ee\u3002  <\/li>\n
              2. \u7f51\u7edc\u95ee\u9898\uff1a\u7f51\u7edc\u8fde\u63a5\u4e0d\u7a33\u5b9a\u53ef\u80fd\u5bfc\u81f4\u4e0b\u8f7d\u5931\u8d25\uff0c\u5efa\u8bae\u6dfb\u52a0\u5f02\u5e38\u5904\u7406\u4ee3\u7801\u4ee5\u5e94\u5bf9\u7f51\u7edc\u9519\u8bef\u3002  <\/li>\n
              3. \u56fe\u7247\u683c\u5f0f\u5904\u7406\uff1a\u786e\u4fdd\u60a8\u80fd\u591f\u5904\u7406\u5404\u79cd\u56fe\u7247\u683c\u5f0f\uff0c\u4f7f\u7528PIL\u5e93\u53ef\u4ee5\u8f7b\u677e\u5730\u5b9e\u73b0\u683c\u5f0f\u8f6c\u6362\u548c\u5904\u7406\u3002
                \u901a\u8fc7\u9002\u5f53\u7684\u5f02\u5e38\u5904\u7406\u548c\u683c\u5f0f\u68c0\u67e5\uff0c\u60a8\u53ef\u4ee5\u63d0\u9ad8\u4e0b\u8f7d\u6210\u529f\u7684\u6982\u7387\u3002<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"Python\u4e0b\u8f7d\u7f51\u7edc\u56fe\u7247\u7684\u5927\u5c0f\uff1a\u4f7f\u7528requests\u5e93\u3001\u4f7f\u7528urllib\u5e93\u3001\u4f7f\u7528AIohttp\u5e93 \u5728Pytho […]","protected":false},"author":3,"featured_media":1077410,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1077402"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=1077402"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1077402\/revisions"}],"predecessor-version":[{"id":1077413,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1077402\/revisions\/1077413"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1077410"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1077402"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1077402"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1077402"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}