django零散知识点

• 后端将对象以对象形式传到前端：

from django.core.serializers import serialize

def xxx(reqeust):

    project_list = models.ProjectManage.objects.filter(pk=id).first().projectmodel_set.all()
    return JsonResponse({"modelList": serialize('json', project_list),})

•  selenium刷新页面

刷新页面：

driver.refresh()

•  python获取cpu核数

  from multiprocessing import cpu_count
  
  print(cpu_count())    >>>   4