iOS有关uilable的部分操作

 //添加titlebar

    UILabel *title=[[UILabel alloc]init];

    CGRect rectTitle=CGRectMake(100, 22, WIDTH-200, 40);

    title.frame=rectTitle;

    title.text=@"睡眠款一号";

    title.textColor=[UIColor whiteColor];

    title.textAlignment=UITextAlignmentCenter;

    title.font=[UIFont systemFontOfSize:16.0];