UIApplication.sharedApplication().openURL

    @IBAction func btnOpen(sender: AnyObject) {        //打开网页        UIApplication.sharedApplication().openURL(NSURL(string: "http://www.163.com")!)    }        @IBAction func SendMail(sender: AnyObject) {        //发邮件        UIApplication.sharedApplication().openURL(NSURL(string: "mailto://[e-mail]")!)    }        @IBAction func SendSMS(sender: AnyObject) {        //发邮件        UIApplication.sharedApplication().openURL(NSURL(string: "sms://13XXXXXXXX")!)    }    @IBAction func TelCall(sender: AnyObject) {        //打电话        UIApplication.sharedApplication().openURL(NSURL(string: "tel://13XXXXXXXX")!)    }