The difference between declaring a variable 「id」 and 「NSObject *」

時間 2020-05-19

標籤 difference declaring variable nsobject 简体版

原文原文鏈接

Question:dom In Objective-C, what's the difference between declaring a variable id versus declaring it NSObject *?this Answer: spa With a variable typed id, you can send it any known message and the c

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1. Difference between hash() and id()
2. What's the difference between →, ⊢ and ⊨ ?
3. 轉：The Difference Between a LayoutTransform and a RenderTransform
4. What's the difference between returning void and returning a Task?
5. What's the difference between a stub and mock?
6. The difference between su and su-
7. difference between "||" and "|", "&&" and "&"
8. What's the difference between frame and bounds
9. Difference between the trait and phenotype
10. The difference between Proxy and CGLIB

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