Django first()和last() Q查询

分别返回queryset的第一项与最后一项,具体用法如下:

p = Blog.objects.order_by(title).first()

等同于:

try:
    p = Blog.objects.order_by(title)[0]
except IndexError:
    p = None
文章来自:https://www.cnblogs.com/hooo-1102/p/12078344.html
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