iOS开发---给数字添加删除线

给数字添加横线,效果图如下

//给价格加中划线    NSUInteger length = [self.goodsCostPriceLabel.text length];    NSMutableAttributedString *attri = [[NSMutableAttributedString alloc] initWithString:self.goodsCostPriceLabel.text];    [attri addAttribute:NSStrikethroughStyleAttributeName value:@(NSUnderlinePatternSolid | NSUnderlineStyleSingle) range:NSMakeRange(0, length)];    [attri addAttribute:NSStrikethroughColorAttributeName value:[UIColor grayColor] range:NSMakeRange(0, length)];    [self.goodsCostPriceLabel setAttributedText:attri];