如何使用DateTimeField仅为django更新设置小时

from django.db import models
from django.utils import timezone
import datetime

class YourModel(models.Model):
    your_datetime_field = models.DateTimeField()

# 获取要更新的模型实例
your_model_instance = YourModel.objects.get(id=1)

# 创建一个新的日期时间对象，设置要更新的小时部分
new_hour = 10
new_datetime = your_model_instance.your_datetime_field.replace(hour=new_hour)

# 更新DateTimeField字段的值
your_model_instance.your_datetime_field = new_datetime

# 保存模型实例，更新数据库记录
your_model_instance.save()