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可可接触。类方法初始化版本alloc / init之间的语义区别是什么？

[英]Cocoa-Touch. What is the semantic difference between class method init versions alloc/init?

原文 2009-12-04 03:29:16 9 1 iphone/ cocoa-touch/ nsmutabledictionary

Could someone please clarify for me the semantic difference between these two: 有人可以帮我澄清一下两者之间的语义区别：

self.foo = [NSMutableDictionary dictionaryWithCapacity:theCapacity]; self.foo = [NSMutableDictionary dictionaryWithCapacity：theCapacity];

self.foo = [[[NSMutableDictionary alloc] initWithCapacity:theCapacity] autorelease]; self.foo = [[[[NSMutableDictionary alloc] initWithCapacity：theCapacity] autorelease];

Are the interchangable? 可以互换吗？ If not how exactly do they differ. 如果不是，它们到底有什么不同。

Thanks in advance. 提前致谢。

Cheers, Doug 干杯，道格

1 个解决方案

In this case they are totally interchangeable. 在这种情况下，它们是完全可以互换的。

dictionaryWithCapacity:theCapacity is just a shortcut dictionaryWithCapacity：theCapacity只是一个捷径

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可可接触。类方法初始化版本alloc / init之间的语义区别是什么？

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解决方案1
3 已采纳 2009-12-04 03:36:31

可可接触。 类方法初始化版本alloc / init之间的语义区别是什么？

问题描述

1 个解决方案

解决方案1 3 已采纳 2009-12-04 03:36:31

可可接触。类方法初始化版本alloc / init之间的语义区别是什么？

解决方案1
3 已采纳 2009-12-04 03:36:31