摘要： 1 - (void)viewDidLoad 2 { 3 [super viewDidLoad]; 4 [self.view setBackgroundColor:[UIColor grayColor]]; 5 // Do any additional setup after loading the view, typically from a nib. 6 MarqueeLabel *label = [[MarqueeLabel alloc]initWithFrame:CGRectMake(0, 0, 100, 20)]; 7 label.backgr... 阅读全文