设置产品缩略图大小并强制执行任何形式的裁剪，以获得所需的一致性。这将允许您设置您喜欢的任何宽度：

<?php
function wpse_307110_override_thumbnail_sizes() {
    $theme_support = get_theme_support( \'woocommerce\' );
    $theme_support = is_array( $theme_support ) ? $theme_support[0] : array();
    // change 150 to whatever width you need
    $theme_support[\'thumbnail_image_width\'] = 150;
    remove_theme_support( \'woocommerce\' );
    add_theme_support( \'woocommerce\', $theme_support );
}
add_action( \'after_setup_theme\', \'wpse_307110_override_thumbnail_sizes\', 10 );
?>

裁剪方形：update_option( \'woocommerce_thumbnail_cropping\', \'1:1\' );

根本不裁剪：update_option( \'woocommerce_thumbnail_cropping\', \'uncropped\' );

或裁剪与自定义比率：

// set width and height as needed: this creates a 4:3 ratio
// so if width is 150px, height will be 113px (112.5 rounded up)
update_option( \'woocommerce_thumbnail_cropping\', \'custom\' );
update_option( \'woocommerce_thumbnail_cropping_custom_width\', \'4\' );
update_option( \'woocommerce_thumbnail_cropping_custom_height\', \'3\' );