小賢的部落格

segmentedConctrol.setDividerImage(UIImage(), forLeftSegmentState: .normal, rightSegmentState: .normal, barMetrics: .default)

        segmentedConctrol.setTitleTextAttributes([NSForegroundColorAttributeName: UIColor.white, NSFontAttributeName: UIFont.boldSystemFont(ofSize: 17)], for: .selected)

        segmentedConctrol.setTitleTextAttributes([NSForegroundColorAttributeName: UIColor(r: 102, g: 102, b: 102), NSFontAttributeName: UIFont.boldSystemFont(ofSize: 17)], for: .normal)

        segmentedConctrol.borderWidth = 1

        segmentedConctrol.borderColor = segmentedConctrol.backgroundColor

參考資料：

http://stackoverflow.com/questions/36467985/how-to-append-attributed-text-string-with-attributed-string-in-swift