Django 单表的双下划线

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# 单表的双下划线
models.Person.objects.filter(id__gt=4)  # 大于  greater than
models.Person.objects.filter(id__lt=4)  # 小于  less than
models.Person.objects.filter(id__get=4) # 大于等于  greater than equal
models.Person.objects.filter(id__lte=4) # 小于等于  less than equal

models.Person.objects.filter(id__range=[1,5])   #   范围  左右都包含
models.Person.objects.filter(id__in=[1,5])  #   成员判断

models.Person.objects.filter(name__contains='alex') #   like
models.Person.objects.filter(name__icontains='alex')    #   like 忽略大小写

models.Person.objects.filter(name__startswith='alex')   # 以什么开头
models.Person.objects.filter(name__istartswith='alex')  # 以什么开头 忽略大小写

models.Person.objects.filter(name__endseith='alex') # 以什么结尾
models.Person.objects.filter(name__iendseith='alex')    # 以什么结尾  忽略大小写

models.Person.objects.filter(birth__year='2020')    #
models.Person.objects.filter(birth__contains='2020-02') #

models.Person.objects.filter(name__isnull=True) # 字段是否为null