docs: def make_view(robot):
      """
      为一个 BaseRoBot 生成 Django view。
  
      :param robot: 一个 BaseRoBot 实例。
      :return: 一个标准的 Django view
      """
  
      @csrf_exempt
      def werobot_view(request):
          timestamp = request.GET.get("timestamp", "")
          nonce = request.GET.get("nonce", "")
          signature = request.GET.get("signature", "")
  
          if not robot.check_signature(
              timestamp=timestamp, nonce=nonce, signature=signature
          ):
              return HttpResponseForbidden(
                  robot.make_error_page(
                      html.escape(request.build_absolute_uri())
                  )
              )
          if request.method == "GET":
              return HttpResponse(request.GET.get("echostr", ""))
          elif request.method == "POST":
              message = robot.parse_message(
                  request.body,
                  timestamp=timestamp,
                  nonce=nonce,
                  msg_signature=request.GET.get("msg_signature", "")
              )
              return HttpResponse(
                  robot.get_encrypted_reply(message),
                  content_type="application/xml;charset=utf-8"
              )
          return HttpResponseNotAllowed(['GET', 'POST'])
  
      return werobot_view