UILable中划线和下划线

//中划线
    
    NSDictionary *attribtDic = @{NSStrikethroughStyleAttributeName: [NSNumber numberWithInteger:NSUnderlineStyleSingle]};
    NSMutableAttributedString *attribtStr = [[NSMutableAttributedString alloc]initWithString:@"内容" attributes:attribtDic];
    label.attributedText = attribtStr;


//下划线
    
    NSDictionary *attribtDic = @{NSUnderlineStyleAttributeName: [NSNumber numberWithInteger:NSUnderlineStyleSingle]};
    NSMutableAttributedString *attribtStr = [[NSMutableAttributedString alloc]initWithString:@"内容" attributes:attribtDic];
    label.attributedText = attribtStr;