为什么 NSURL 的 port 要设计成 NSNumber 类型？

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This topic created in 3547 days ago, the information mentioned may be changed or developed.

@interface NSURL: NSObject <NSSecureCoding, NSCopying, NSURLHandleClient>

@property (nullable, readonly, copy) NSNumber *port;

@end

short 不是够了吗？请指教。

3 replies • 2017-01-10 02:16:12 +08:00

gogozs

Jan 9, 2017

”符合面向对象“

yuankui

Jan 9, 2017

那有那么多细节要纠结啊..
有什么实质性的影响吗?

wdxz5586

Jan 10, 2017 via iPhone

可以区分是“端口 0 ”还是“默认端口”