我不知道为什么我不能按类别名称取产品。我找不到任何产品。代码如下所示

 <ul class="glide__slides">
<?php
    $args = array(
        \'post_type\'      => \'product\',
        \'category_name\' => \'trofee\',
        \'posts_per_page\' => 20,
        \'meta_query\'     => array(
                \'relation\' => \'OR\',
                array( // Simple products type
                    \'key\'           => \'_sale_price\',
                    \'value\'         => 0,
                    \'compare\'       => \'>\',
                    \'type\'          => \'numeric\'
                ),
                array( // Variable products type
                    \'key\'           => \'_min_variation_sale_price\',
                    \'value\'         => 0,
                    \'compare\'       => \'>\',
                    \'type\'          => \'numeric\'
                )
            )
    );
    $loop = new WP_Query( $args );
    if ( $loop->have_posts() ) {
        while ( $loop->have_posts() ) : $loop->the_post();
        global $product;
        $id = $product->get_id();
        echo \'<li class="glide__slide">\';
        echo \'<br /><a href="\'.get_permalink().\'">\' . woocommerce_get_product_thumbnail().\' <br> \'.get_the_title().   \'<br>\' . \'<div class="bf-sale"><span>\' . $product->get_regular_price() .\' Lei </span>\' . \'<span>\' . $product->get_sale_price()  .\'Lei</span></div>\' .\'</a>\';
        echo \'<div class="trophies-container__trophy-action">\';
        echo sprintf(\' <a href="?add-to-cart=%d data-quantity="1" class="button product_type_simple add_to_cart_button ajax_add_to_cart" data-product_id="%d" data-product_sku=""  rel="nofollow"><i class="fas fa-shopping-cart"></i>Adaugă în coș</a>\',$id,$id);
        echo \'</div>\';
        echo \'</li>\';
        endwhile;
    } else {
        echo __( \'No products found\' );
    }
    wp_reset_postdata();
?>