weak情况
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@property (weak,nonatomic) UILabel *nameLabel;UILabel *nameLabel = [[UILabel alloc] init];self.nameLabel = nameLabel; |
strong情况
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@property (strong,nonatomic) UILabel *timeLabel;- (UILabel *)timeLabel{ if (!_timeLabel) { _timeLabel = [[UILabel alloc] init]; } return _timeLabel;} |
原文：http://www.cnblogs.com/weiboyuan/p/4987631.html