self.backgroundView = ({UIView* view = [[UIViewalloc] initWithFrame:self.bounds];
view.backgroundColor = [UIColorcolorWithWhite:0.5alpha:0.5]; view;});
self.backgroundView = ({UIView* view = [[UIViewalloc] initWithFrame:self.bounds];
view.backgroundColor = [UIColorcolorWithWhite:0.5alpha:0.5]; view;});
本文标题:2018-04-17
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