在。。。ViewController的viewDidLoad函数中添加下面的代码：
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
self.view.backgroundColor = [UIColor blackColor];
UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(0, 50, 320, 300)];
label.font = [UIFont fontWithName:@"DBLCDTempBlack" size:128.0];
label.backgroundColor = [UIColor colorWithRed:1 green:1 blue:1 alpha:0];
label.text = @"10:32";
label.textColor = [UIColor greenColor];
[self.view addSubview:label];
}
运行后会看到：