Swift小功能点积累

label字符加删除线

let label = UILabel(frame: CGRectMake(, , , ))
let attr = NSMutableAttributedString(string: "")
 attr.addAttribute(NSStrikethroughStyleAttributeName, value: NSNumber(integer: ), range: NSMakeRange(, ))
 label.attributedText = attr
 label.sizeToFit()

 self.view.addSubview(label) 

时间处理：

var date = NSDate()
var timeFormatter = NSDateFormatter()
timeFormatter.dateFormat = "yyy-MM-dd 'at' HH:mm:ss.SSS" (格式可俺按自己需求修整)
var strNowTime = timeFormatter.stringFromDate(date) as String