IOS UI 手写UILable

[super viewDidLoad];    // Do any additional setup after loading the view.            //UILable 初始化方法    UILabel *TestLable = [[UILabel alloc]init];        //设置Frame坐标及大小    CGFloat TestLableX = 0;    CGFloat TestLableY = 70;    CGFloat TestLableW = self.view.bounds.size.width;    CGFloat TestLableH = 20;            //设定按钮的显示位置    CGRect AA = CGRectMake(TestLableX, TestLableY, TestLableW, TestLableH);    TestLable.frame = AA;        //设定背景色    TestLable.backgroundColor = [UIColor redColor];        //设定文字 内容 字体字号 颜色    TestLable.text = @"按钮文字";    TestLable.font = [UIFont fontWithName:@"Helvetica-Bold" size:20];    TestLable.textColor = [UIColor whiteColor];        //设置对其方式    //NSTextAlignmentCenter   居中对其    //NSTextAlignmentLeft     向左对其    //NSTextAlignmentRight    向右对其        //TestLable.textAlignment = NSTextAlignmentCenter;        //设置阴影    //设置阴影色彩和透明度    TestLable.shadowColor = [UIColor colorWithWhite:0.1f alpha:0.8f];    //设置阴影的纵横向的偏移量    TestLable.shadowOffset = CGSizeMake(0, -1);        //设置换行    TestLable.lineBreakMode = NSLineBreakByWordWrapping;    //指定文本行数 0无限制    TestLable.numberOfLines = 0;                //显示进UIView    [self.view addSubview:TestLable];