太阳火神的美丽人生 (http://blog.csdn.net/opengl_es)
本文遵循“署名-非商业用途-保持一致”创作公用协议
Mutable 对于那些不能直接对其中内容进行更改的类来说,是一种扩展方式,象数值这类的,不涉及到指针的,就没有 Mutable 子类,可能是因为其本身可以直接修改自身值吧。
换句话说,象字符串这类内容与地址不同且都可以被更改的存储,在高级语言中,更关心的是内容的更改,尤其象 Java 已经用“引用”淡化了指针的概念,而实际内部是在操作指针这类东西,我也是估计的。
Title | Resource Type | Topic | Framework | Date |
---|---|---|---|---|
Reference |
Data Management
Data Types & Collections |
Foundation |
2013-10-22 Minor Change |
|
Reference |
Data Management
Strings, Text, & Fonts |
Foundation |
2010-02-25 Content Update |
|
Reference |
Data Management
Strings, Text, & Fonts |
UIKit |
2013-09-18 First Version |
|
Reference |
Data Management
Strings, Text, & Fonts |
Foundation |
2006-05-23 Minor Change |
|
Reference | Foundation |
2006-05-23 Minor Change |
||
Reference |
Data Management
Data Types & Collections |
Foundation |
2007-03-26 Minor Change |
|
Reference |
Data Management
Data Types & Collections |
Foundation |
2013-10-22 Minor Change |
|
Reference |
Data Management
Data Types & Collections |
Foundation |
2014-02-11 Minor Change |
|
Reference |
Data Management
Data Types & Collections |
Foundation |
2013-10-22 Minor Change |
|
Reference |
Data Management
Strings, Text, & Fonts |
UIKit |
2013-09-18 Minor Change |
|
Reference |
Data Management
Data Types & Collections |
Foundation |
2013-10-22 Minor Change |
|
Reference |
Data Management
Strings, Text, & Fonts |
Foundation |
2007-03-06 Minor Change |
|
Reference |
Networking & Internet
Protocol Streams |
Foundation |
2014-02-11 Minor Change |
Copyright ? 2013 Apple Inc. All rights reserved.
iOS Foundation 框架中 Mutable 的类们,布布扣,bubuko.com