打开谷歌首页
UIApplication.sharedApplication().openURL(NSURL(string: "http://www.google.com")!)
UIApplication.sharedApplication().openURL(NSURL(string: "mailto://10001@qq.com")!)
打电话
UIApplication.sharedApplication().openURL(NSURL(string: "te l://10086")!)
发短信
UIApplication.sharedApplication().openURL(NSURL(string: "sms://10086")!)