UILabel，文字添加下划线，中划线

//显示下划线
//中划线
// NSDictionary *attribtDic = @{NSStrikethroughStyleAttributeName: [NSNumber numberWithInteger:NSUnderlineStyleSingle]};
//下划线
NSDictionary *attribtDic = @{NSUnderlineStyleAttributeName:
[NSNumbernumberWithInteger:NSUnderlineStyleSingle]};
NSMutableAttributedString *attribtStr = [[NSMutableAttributedString alloc]initWithString:oldStrattributes:attribtDic];
oldPriceLabel.attributedText = attribtStr;