doc：注释

device_communication/views.py

@@ -7,7 +7,9 @@ from protocol_version_manage.models import (AllProtocolVersion, AllProtocolDefin
 
 @api_view(['GET'])
 def get_protocol_names(request):
-
+    """
+    获取所有协议，并返回
+    """
     protocol_names = AllProtocolVersion.objects.all()
     res_data = ([{'value': protocol_name.protocol_name, 'label': protocol_name.protocol_name} 
                  for protocol_name in protocol_names])
@@ -17,6 +19,9 @@ def get_protocol_names(request):
 
 @api_view(['POST'])
 def get_protocol_field_names(request):
+    """
+    获取指定协议下的指令集
+    """
     protocol_name = request.data.get('protocol_name')
     if protocol_name is None or protocol_name == '': 
         return Response(status=status.HTTP_400_BAD_REQUEST)