代码：
- (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view. //把<br!>换成\n NSString *string=@"123<br!>456<br!>789"; NSString *newStr=[string stringByReplacingOccurrencesOfString:@"<br!>" withString:@"\n"]; NSString *newNewStr=[newStr stringByReplacingOccurrencesOfString:@"\n" withString:@"<br!>"]; UILabel *label=[[UILabel alloc]initWithFrame:CGRectMake(10, 100, 100, 200)]; label.backgroundColor=[UIColor redColor]; label.text=newNewStr; //下面这个代码很重要，很重要的 label.numberOfLines=0; [self.view addSubview:label]; }
转载于:https://www.cnblogs.com/yang-guang-girl/p/5507504.html
