摘要:
static Singleton *sharedSingleton = nil;+(Singleton *)sharedInstance{ if (sharedSingleton == nil) { sharedSingleton = [[super allocWithZone:NULL] init]; } return sharedSingleton;}+(id)allocWithZone:(NSZone *)zone{ return [[self sharedInstance] retain];}-(id)copyWithZone:(NSZone *)... 阅读全文
posted @ 2012-12-26 09:54
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