wordpress搜索结果排除某个分类如何操作

　　我们知道wordpress的搜索结果页search.php和分类页category.php是一样的，但是客户的网站是功能比较多的系统，有新闻又有产品，如果搜索结果只想展示产品要如何操作呢？随ytkah一起来看看吧

　　假设新闻分类id为1，3，4，排除调用这三个分类id的代码如下

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<?php if ( have_posts() ) : query_posts($query_string .'&cat=-1,-3,-4'); while ( have_posts() ) : the_post(); ?>                                 <div class="item col-xs-12 col-sm-6 col-md-4"><a                                             href="<?php the_permalink(); ?>">                                         <?php if (get_field('pimg01')): ?>                                             <img src="<?php the_field('pimg01'); ?>"                                                  alt="<?php the_title(); ?>"/>                                         <?php endif; ?>                                         <div class="text"><p><?php the_title(); ?></p></div>                                     </a>                                 </div>                             <?php endwhile; ?>                                   <?php the_posts_pagination(array('mid_size' => 2, 'prev_text' => __('Prev', 'textdomain'), 'next_text' => __('Next', 'textdomain'),)); ?>                               <?php else : ?>                                 no products!                             <?php endif; ?>