iOS开发---UILabel

-(void)creatUI{
    //创建一个UILabel
    UILabel* label = [[UILabel alloc] init];
    
    label.text = @"Hello world";
    
    label.frame = CGRectMake(100, 200, 160, 40);
    
    label.backgroundColor = [UIColor grayColor];
    
    label.textColor = [UIColor redColor];
    
    
    
    label.textAlignment = NSTextAlignmentCenter;
    
    label.font =  [UIFont systemFontOfSize:12];
    

    //label 的高级属性
    label.shadowColor = [UIColor blueColor];
    
    label.shadowOffset = CGSizeMake(5, 5);

    
    
    //当行数设置为0时，iOS自动计算行数。
    label.numberOfLines = 0;
    
    [self.view addSubview:label];

}

        
         
         
         
- (void)viewDidLoad {
    [super viewDidLoad];
    
    //调用creatUI函数
    [self creatUI];

}