IOS单例模式代码示例
@interface MySingleton : NSObject
- (instancetype)sharedInstance;
@end
@implementation MySingleton
- (instancetype)sharedInstance { static MySingleton *sharedInstance = nil; static dispatch_once_t onceToken; dispatch_once(&onceToken, ^{ sharedInstance = [[self alloc] init]; }); return sharedInstance; }
@end
文件大小：144.07KB
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