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php爱好者> php文档>Copying Objects(Chapter 17 of Programming in Objective-C 2.0)

Copying Objects(Chapter 17 of Programming in Objective-C 2.0)

时间:2010-10-25  来源:Ray Z

using them if you know this code will only ever be running in a single thread. If nonatomic is not specified or atomic is specified instead (which is the default), then your instance variable will be protected with a mutex lock. In addition, the synthesized getter method will retain and autorelease the instance variable before its value is returned. 

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