问题描述
我了解常量CString是静态分配的，而不是在堆上分配的。
I understand that constant CStrings are allocated statically, rather than on the heap.
我还注意到常量NSString具有无限的保留计数。
I also noticed that constant NSStrings have an infinite retain count. Does it hold true that constant NSStrings are also allocated statically, rather than on the heap?
推荐答案
常量NSString属于类<$，这是否成立？ c $ c> NSConstantString ，因此就像Lisp中的原子一样；他们闲逛。 -> NSConstantStrings 是静态分配的。也就是说，如果您使用 @ cow 在代码中的两个不同位置，它们将引用同一对象。
Constant NSStrings are of class NSConstantString, and thus act like atoms in lisp; they hang around. -> NSConstantStrings are allocated statically. That is, if you use @"cow" in two separate places in your code, they will be referencing the very same object.
NSConstantStrings 的原因保留计数是因为它们是从 NSObject 继承的。
The reason why NSConstantStrings even have a retain count is because they inherit from NSObject.
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