Django Book 翻译
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原文:
This method is useful when you know youre only going to need values from a small number of the available fields and you wont need the functionality of a model instance object. Its more efficient to select only the fields you need to use.
翻译:
当你从一小数目的可用字段获取值和不需要一个模型实例对象的时候,这个方法很有用。它的更有效率的领域只选择你需要使用
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