获取所有变异图像（附加变化图像woocommerce插件）

I need to retrieve all the images of a variation, I can get the first image with $variation = wc_get_product( $variation_id ); $updated_image_id = $variation->get_image_id('edit'); but how can I get all the additional variation images if I know the variation id?

You can try this - Not tested though.

$args = array(
    'post_parent' => $variation_id,
    'post_type' => 'attachment',
    'post_mime_type' => 'image' 
);
$images = get_children( $args );

if ( empty($images) ) {
    // no attachments here
} else {
    foreach ( $images as $attachment_id => $attachment ) {
        //Do whatever here
        echo wp_get_attachment_image( $attachment_id, 'full' );
    }
}

You can get a list of the product's variations:

// In the product loop:
$variations = $product->get_available_variations();

// Outside the product loop:
$product = new WC_Product_Variable( $product_id );
$variations = $product->get_available_variations();

Loop over it to get the image from each variation like so:

foreach ( $variations as $variation ) {
    echo $variation['image_src'];
}