let  UpdateAler = UIAlertView()
            UpdateAler.addButtonWithTitle("更新") //Prints 0
            UpdateAler.addButtonWithTitle("忽略") //Prints 1
            UpdateAler.title = "提示";
            UpdateAler.message = "请确认是否输入8或10位数字证书号";
            UpdateAler.show()
            UpdateAler.delegate = self   //不要忘记
func alertView(View: UIAlertView!, clickedButtonAtIndex buttonIndex: Int){
        
        switch buttonIndex{
            
        case 0:
            NSLog("开始更新");
            UIApplication.sharedApplication().openURL(NSURL(string : "tel://9809088798"))
        case 1:
            NSLog("忽略");
        default:
            break
            //Some code here..
            
        }
    }