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摘要： 属性参数有以下三种Writability、Setter、SemanticsAtomicityWritabilityThese attributes specify whether or not a property has an associated set accessor. They are mutually exclusive.readwriteIndicates that the property should be treated as read/write. This attribute is the default.readonlyIf you use the@synthesiz 阅读全文

摘要： 摘要: TheNSDictionaryclass declares the programmatic interface to objects that manage immutable associations of keys and values.NSDictionary类定义了对于objects的接口，用于将键值和数值关联起来。Use this class or its su...阅读全文Wangkeke 2012-02-04 22:16 发表评论 阅读全文