让Label竖着显示

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    
    UILabel *rotateLable = [[UILabel alloc] initWithFrame:CGRectMake(164, 300, 200, 44)];
    
    rotateLable.text = @"QWJIFHASDFNAMSFJO";
    
    [self transformLabel:rotateLable WithTransX:-145.0f andTransY:0.0f andAngle:(-M_PI / 2)];
    
    [self.view addSubview:rotateLable];
    // Do any additional setup after loading the view, typically from a nib.
}

- (void)transformLabel:(UILabel *)label WithTransX:(CGFloat )tx andTransY:(CGFloat )ty andAngle:(CGFloat )angle{

    label.transform = CGAffineTransformRotate(CGAffineTransformMakeTranslation(tx, ty), angle);
}


- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end