UIButton *clickBtn = [[UIButton alloc]initWithFrame:CGRectMake(cell.contentView.frame.size.width-70-15,10 , 70, 25)];
//下边二个角是圆角上边是直角 UIRectCornerTopLeft UIRectCornerTopRight
UIBezierPath *maskPath = [UIBezierPath bezierPathWithRoundedRect:self.displayBtn.bounds byRoundingCorners:UIRectCornerBottomLeft | UIRectCornerBottomRight cornerRadii:CGSizeMake(2, 2)];
CAShapeLayer *maskLayer = [[CAShapeLayer alloc] init];
maskLayer.frame = self.displayBtn.bounds;
maskLayer.path = maskPath.CGPath;
self.displayBtn.layer.mask = maskLayer;
//中划线
NSDictionary *attribtDic = @{NSStrikethroughStyleAttributeName: [NSNumber numberWithInteger:NSUnderlineStyleSingle]};
//下划线
NSDictionary *attribtDic = @{NSUnderlineStyleAttributeName: [NSNumber numberWithInteger:NSUnderlineStyleSingle]};
NSString *oldStr = @"忘记密码";
NSMutableAttributedString *attribtStr = [[NSMutableAttributedString alloc]initWithString:oldStr attributes:attribtDic];
