NSMutableAttributedString 富文本框 设置下划线

NSString *priceString = [NSString stringWithFormat:@"原价:%@万", myModel.price];

    NSMutableAttributedString *attributedString1 = [self setLabelAttriButeString:priceString andModelLength:myModel.price2.length];

    [attributedString1 addAttribute:NSStrikethroughStyleAttributeName value:[NSNumber numberWithInteger:NSUnderlinePatternSolid | NSUnderlineStyleSingle] range:NSMakeRange(0, priceString.length)];

- (NSMutableAttributedString *)setLabelAttriButeString:(NSString *)text andModelLength:(NSInteger)modelLength

{

    NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:text];

    [attributedString addAttribute:NSForegroundColorAttributeName value:[UIColor orangeColor] range:NSMakeRange(3, modelLength)];

   

    return attributedString;

}