UIButton *onlyPriceBtn = [UIButton buttonWithType:UIButtonTypeCustom];
    onlyPriceBtn.layer.borderColor = [HuConfigration uiColorFromString:@"#F0493D"].CGColor;;
    onlyPriceBtn.layer.borderWidth = 0.5f;
    onlyPriceBtn.layer.cornerRadius = 4;
    onlyPriceBtn.layer.masksToBounds = YES;
    onlyPriceBtn.frame = CGRectMake(15, CGRectGetMaxY(titleLabel.frame)+15, HHBWIDTH - 30, 60);
    [self.bgView addSubview:onlyPriceBtn];
    
    UILabel *btnTitleLabel = [[UILabel alloc]initWithFrame:CGRectMake(0, 0, 200, 60)];
    btnTitleLabel.center = onlyPriceBtn.center;
    btnTitleLabel.textColor = kHuColor(#A5A5A5);
    btnTitleLabel.font = [UIFont customFontSize:12];
    btnTitleLabel.numberOfLines = 0;
    btnTitleLabel.text = @"独享价30.0元\n购买后仅供自己观看学习";//使用斜杠一定不要忘记写numberOfLines 否则无效
    btnTitleLabel.textAlignment = NSTextAlignmentCenter;
    NSMutableAttributedString *attributer = [[NSMutableAttributedString alloc]initWithString:btnTitleLabel.text];
    
    [attributer addAttribute:NSForegroundColorAttributeName
                       value:kHuColor(#F0493D)
                       range:NSMakeRange(0, 8)];
    [attributer addAttribute:NSFontAttributeName
                       value:[UIFont customFontSize:16]
                       range:NSMakeRange(0, 8)];

    NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc]init];//调整行间距
    [paragraphStyle setLineSpacing:4];
    [attributer addAttribute:NSParagraphStyleAttributeName
                       value:paragraphStyle
                       range:NSMakeRange(0, btnTitleLabel.text.length)];
    [paragraphStyle setAlignment:NSTextAlignmentCenter];//为了美观调整行间距，但是当调整行间距时上面设置的居中不能用看 所以要加这一句 [paragraphStyle setAlignment:NSTextAlignmentCenter] 不然没有居中效果
    btnTitleLabel.attributedText = attributer;
    [self.bgView addSubview:btnTitleLabel];

效果图

image.png