TimeInterval Used to specify a time interval, in seconds.NSTimeInterval is always specified in seconds; it yields sub-millisecond precision over a range of 10,000 years.苹果文档这么说的,那么应该就是特定指时间秒的,输出方法跟float一致
TimeInterval Used to specify a time interval, in seconds.NSTimeInterval is always specified in seconds; it yields sub-millisecond precision over a range of 10,000 years.苹果文档这么说的,那么应该就是特定指时间秒的,输出方法跟float一致
本文标题:NSTimeInterval是什么?
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