// Mark: 2. 创建label

     private func creatLabel(title: NSString)->UILabel{

                 /// 创建label

         let titleL = UILabel(frame: CGRectMake(, , , ))

         titleL.text = title as String

         titleL.textColor = UIColor.redColor()

         titleL.backgroundColor = UIColor.yellowColor()

         titleL.layer.cornerRadius = 10.0

         titleL.layer.masksToBounds = true

         titleL.textAlignment = NSTextAlignment.Center

         titleL.font = UIFont.systemFontOfSize(16.0)

         // 阴影

         titleL.shadowColor = UIColor.cyanColor()

         titleL.shadowOffset = CGSizeMake(-, )

         // 省略方式

         titleL.lineBreakMode = NSLineBreakMode.ByTruncatingTail

 //        titleL.adjustsFontSizeToFitWidth = true

         titleL.numberOfLines = 

         // 富文本

         let attr = NSMutableAttributedString(string: "NSMutableAttributedStringNSMutableAttributedStringNSMutableAttributedString")

         attr.addAttribute(NSFontAttributeName, value: UIFont.boldSystemFontOfSize(25.0), range: NSMakeRange(, ))

         attr.addAttribute(NSForegroundColorAttributeName, value: UIColor.purpleColor(), range: NSMakeRange(, ))

         titleL.attributedText = attr

         self.view.addSubview(titleL)

         return titleL;

     }