Django 【orm】或

方式一：

q=Q()
q.connection="or"
q.children.append(("pk",1))
q.children.append(("user_id",1))
q.children.append(("room_id",1))
 
Book.objects.filter(q)

方式二：

Book.objects.filter(Q(pk=1)|Q(user_id=1)|Q(room_id=1))