UIApplication.sharedApplication().openURL(NSURL(string: "http://www.163.com")!) //浏览器打开
     UIApplication.sharedApplication().openURL(NSURL(string: "mailto://xxx@gmail.com")!)//发送邮件

UIApplication.sharedApplication().openURL(NSURL(string: "sms://182XXXXXXXX")!)//发送短信

UIApplication.sharedApplication().openURL(NSURL(string: "tel://182XXXXXXXX")!)//打电话