def retrieve(self, request, *args, **kwargs):
    instance = self.get_object()
    serializer = self.get_serializer(instance)
    return SuccessResponse(data=serializer.data, msg='获取成功')
def retrieve(self, request, *args, **kwargs):
    instance = self.get_object()
    serializer = self.get_serializer(instance)
    return SuccessResponse(data=serializer.data, msg='获取成功')