该编程规则的名称是什么？
有一个编程“规则”，规定方法在需要知道“xyz”时不应询问“x”，而应直接询问“z”。 我只是记不起名字了。
There is a programming "rule" that says that a method should instead of asking for 'x' when it needs to know 'x.y.z', ask directly for 'z'. I just can't remember the name.
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我不确定这是否正是您所追求的，但这听起来非常类似于德米特法则< /a>.
I'm not sure if it's exactly what you're after but this sounds very similar to The Law of Demeter.
它被称为德墨忒尔定律（又名最少知识原理）。
请参阅http://en.wikipedia.org/wiki/Law_of_Demeter。
我听过的最生动、最难忘的例子是“当你在商店付款时，店员不会要求你提供钱包，这样他们就可以提取钱，他们会要求你提供钱包”钱！”
It's known as the Law of Demeter (a.k.a. Principle of Least Knowledge).
See http://en.wikipedia.org/wiki/Law_of_Demeter.
The most vivid and memorable illustration of it I've heard was "When you're paying for a purchase in a store, the clerk doesn't ask you for your wallet so they can extract the money, they ask you for the money!"
你在想德墨忒尔法则吗？
Are you thinking of the Law of Demeter?