pragma mark - 重画tableview的线

- (void)drawRect:(CGRect)rect
{
    CGContextRef context = UIGraphicsGetCurrentContext();
    CGContextSetFillColorWithColor(context, [UIColor clearColor].CGColor);
    CGContextFillRect(context, rect);
    
    //下分割线
    CGContextSetStrokeColorWithColor(context, [UIColor lightGrayColor].CGColor);
    CGContextStrokeRect(context, CGRectMake(0, rect.size.height, rect.size.width, 1));
}

pragma mark - 如何给UILabel添加中线

UILabel * strikeLabel = [[UILabel alloc] initWithFrame:(CGRectMake(10, 10, 50, 30))];
NSString *textStr = [NSString stringWithFormat:@"%@元", primeCost];

  //中划线
NSDictionary *attribtDic = @{NSStrikethroughStyleAttributeName: [NSNumber numberWithInteger:NSUnderlineStyleSingle]};
NSMutableAttributedString *attribtStr = [[NSMutableAttributedString alloc]initWithString:textStr attributes:attribtDic];
       
  // 赋值
 strikeLabel.attributedText = attribtStr;
 [self.view addSubview:strikeLabel];

pragma mark - 如何给UILabel添加下划线

UILabel *underlineLabel = [[UILabel alloc] initWithFrame:(CGRectMake(10, 10, 50, 30))]; 
NSString *textStr = [NSString stringWithFormat:@"%@元", primeCost];

  // 下划线
NSDictionary *attribtDic = @{NSUnderlineStyleAttributeName: [NSNumber numberWithInteger:NSUnderlineStyleSingle]};
NSMutableAttributedString *attribtStr = [[NSMutableAttributedString alloc]initWithString:textStr attributes:attribtDic];

  //赋值
 underlineLabel.attributedText = attribtStr;
 [self.view addSubview:underlineLabel];

pragma mark - 创建Button下划线

UIButton *button = [[UIButtonalloc]initWithFrame:CGRectMake(0,0, KScreenWidth,25)]; 

[button setTitleColor:[UIColorblackColor] forState:UIControlStateNormal]; 

[button setBackgroundColor:[UIColorcolorWithRed:239.0/255.0green:152.0/255.0blue:121.0/255.0alpha:1]];
[button.titleLabel setFont:[UIFont systemFontOfSize:10]];

NSMutableAttributedString *title = [[NSMutableAttributedStringalloc] initWithString:@"号源紧俏经常预约不上？试试预约抢号功能？ >>"];
NSRange titleRange = {0, [titlelength]};

[title addAttribute:NSUnderlineStyleAttributeNamevalue:[NSNumbernumberWithInteger:NSUnderlineStyleSingle]range:titleRange];
[button setAttributedTitle:titleforState:UIControlStateNormal];
[button addTarget:selfaction:@selector(buttonAction:)forControlEvents:UIControlEventTouchUpInside];

[self.view addSubview:button];