UILabel *productLabel = [[UILabel alloc] initWithFrame:CGRectMake(15, 20, 70, 17)];
productLabel.text = @"产品介绍";
productLabel.font = [UIFont fontWithName:@"Helvetica-Bold" size:16];
productLabel.textColor = [UIColor colorWithRed:51.0/255.0 green:51.0/255.0 blue:51.0/255.0 alpha:1];
productLabel.userInteractionEnabled = YES; //必须开启这一句手势才有效果
UITapGestureRecognizer *productClick = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(changeProduct:)];
productClick.numberOfTapsRequired = 1;
productClick.cancelsTouchesInView = NO;
[productLabel addGestureRecognizer:productClick];
- (void)changeProduct:(UITapGestureRecognizer *)sender {
_isProductReviews = 1;
NSLog(@"%x",_isProductReviews);
[_myTableView reloadData];
}