Django Book 翻译
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原文:
We advise against storing the literal value ``None`` in the cache, because you wont be able to distinguish between your stored ``None`` value and a cache miss signified by a return value of ``None`` .
翻译:
我们不建议在缓存中保存 ``None`` 常量,因为你将无法区分所保存的 ``None`` 变量及由返回值 ``None`` 所标识的缓存未中。
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