sprawl
发表于 2025-3-21 20:01:31
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仇恨
发表于 2025-3-21 21:19:43
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不给啤
发表于 2025-3-22 02:18:43
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MIR
发表于 2025-3-22 07:58:14
A Quick Tour of the Foundation Kit,re going to take a quick side trip and have a look at Cocoa’s Foundation framework. Although strictly part of Cocoa and not built in to Objective-C, the Foundation framework is so important that we thought it worth exploring in this book.
实现
发表于 2025-3-22 11:16:45
Object Initialization,iques are equivalent, but the common Cocoa convention is to use alloc and init rather than new. Typically, Cocoa programmers use new as training wheels until they have enough background to be comfortable with alloc and init. It’s time for your training wheels to come off.
向外
发表于 2025-3-22 13:22:18
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发誓放弃
发表于 2025-3-22 19:45:18
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钉牢
发表于 2025-3-23 00:05:26
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异端
发表于 2025-3-23 01:26:35
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高脚酒杯
发表于 2025-3-23 05:46:03
Inheritance,When you write an object-oriented program—and we hope you’re going to write . of them—the classes and objects you create have relationships with each other. They work together to make your program do its thing.