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打印视图的约束,它们显示出了这样的:NSLayoutConstraint描述是随机不同
<__NSArrayI 0x14020baa0>(
<NSContentSizeLayoutConstraint:0x14026bda0 H:[PinView:0x1401f4e80(93)] Hug:250 CompressionResistance:750>,
<NSContentSizeLayoutConstraint:0x14026d1f0 V:[PinView:0x1401f4e80(269)] Hug:250 CompressionResistance:750>,
<NSLayoutConstraint:0x140266560 V:|-(0)-[UIView:0x1401fad10] (Names: '|':PinView:0x1401f4e80)>,
<NSLayoutConstraint:0x140232770 H:|-(0)-[UIView:0x1401fad10] (Names: '|':PinView:0x1401f4e80)>,
<NSLayoutConstraint:0x140232800 UIView:0x1401fad10.bottom == PinView:0x1401f4e80.bottom>,
<NSLayoutConstraint:0x14024a6d0 UIView:0x1401fad10.trailing == PinView:0x1401f4e80.trailing>
)
为什么第一4示出了视觉格式,和仅最后2示出了常规的(更清晰)格式?
description
方法是基于创建方式返回不同的东西吗?