cell?.backgroundColor = UIColor(red: (CGFloat(Float(arc4random()%255)/255.0)), green: (CGFloat(Float(arc4random()%255)/255.0)), blue: (CGFloat(Float(arc4random()%255)/255.0)), alpha: 1.0)
cell?.backgroundColor = UIColor(red: (CGFloat(Float(arc4random()%255)/255.0)), green: (CGFloat(Float(arc4random()%255)/255.0)), blue: (CGFloat(Float(arc4random()%255)/255.0)), alpha: 1.0)
本文标题：swift cell生成随机背景颜色
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