如下:
func RGB(red: CGFloat, green: CGFloat, blue: CGFloat) -> UIColor { return UIColor.init(red: red / 255.0, green: green / 255.0, blue: blue / 255.0, alpha: 1.0) } func RGB(red: CGFloat, green: CGFloat, blue: CGFloat, alpha: CGFloat) -> UIColor { return UIColor.init(red: red / 255.0, green: green / 255.0, blue: blue / 255.0, alpha: alpha) } func ColorFromHex(rgbValue: Int) -> (UIColor) { return UIColor(red: ((CGFloat)((rgbValue & 0xFF0000) >> 16)) / 255.0, green: ((CGFloat)((rgbValue & 0xFF00) >> 8)) / 255.0, blue: ((CGFloat)(rgbValue & 0xFF)) / 255.0,alpha: 1.0) } func ColorFromHex(rgbValue: Int, alpha: CGFloat) -> (UIColor) { return UIColor(red: ((CGFloat)((rgbValue & 0xFF0000) >> 16)) / 255.0, green: ((CGFloat)((rgbValue & 0xFF00) >> 8)) / 255.0, blue: ((CGFloat)(rgbValue & 0xFF)) / 255.0,alpha: alpha) }