无法根据特定产品类别提取变体销售产品。我的代码只提取简单产品，不提取可变产品。

  $cat_id = $_GET[\'catid\'];

  $args = array(    
\'post_type\'             => \'product\',
\'post_status\'           => \'publish\',
\'posts_per_page\'        =>-1, 
\'meta_query\'     => array(
    \'relation\' => \'OR\',
  array( // Variable products type
        \'key\'           => \'_min_variation_sale_price\',
        \'value\'         => 0,
        \'compare\'       => \'>\',
        \'type\'          => \'numeric\'
    ),
    array( // Simple products type   
        \'key\'           => \'_sale_price\',
        \'value\'         => 0,
        \'compare\'       => \'>\',
        \'type\'          => \'numeric\'
    )
    ),
\'tax_query\'             => array(
    array(
        \'taxonomy\'      => \'product_cat\',
        \'field\' => \'term_id\', //This is optional, as it defaults to \'term_id\'
        \'terms\'         => $cat_id,
        \'include_children\' => true,
        \'operator\'      => \'IN\' // Possible values are \'IN\', \'NOT IN\', \'AND\'.
    )
    )

);
$products = new WP_Query($args);