如果要在管理面板中设置这些，请使用函数get_option. 钥匙是

get_option(\'thumbnail_size_w\');
get_option(\'thumbnail_size_h\');
get_option(\'medium_size_w\');
get_option(\'medium_size_h\');
get_option(\'large_size_w\');
get_option(\'large_size_h\');

如果你使用wp_get_attachment_image_src 你可以得到这样的宽度和高度

<img 
    src="<?php $featured_image = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), array( 9999, 9999 ), false, \'\' ); echo $featured_image[0]; ?>"
    width="<?php echo $featured_image[1]; ?>"
    height="<?php echo $featured_image[2]; ?>" 
/>