如何调用 iOS 打电话,发短信

[[UIApplication sharedApplication] openURL:[NSURL urlwithString:@”tel://1543434”]]; [[UIApplication sharedApplication] openURL:[NSURL urlwithString:@”sms://1572234”]]; [[UIApplication sharedApplication] openURL:[NSURL urlwithString:@”mail://hello@hello.com”]];
[[UIApplication sharedApplication] openURL:[NSURL urlwithString:@”http://1000phone.net”]];