뷰에 표현할 폰트 설정방법

**.m

- (void)viewDidLoad {
    [self onTimer]; //타이머를 설정한다.
    timer = [NSTimer scheduledTimerWithTimeInterval:(1.0) target:self selector:@selector(onTimer) userInfo:nil repeats:YES];
   
    [clockDisplay setFont:[UIFont fontWithName:@"DBLCDTempBlack size:64.0]]