在程序中调用Safari和发起电话呼叫-IOS开发

NSURL* url = [[NSURL alloc] initWithString:@"http://blog.youkuaiyun.com/iukey"]; [[ UIApplication sharedApplication]openURL:url];
NSURL* url = [[NSURL alloc] initWithString:@"tel:110"]; [[ UIApplication sharedApplication]openURL:url];