看起来这将实现您想要的功能，只需为其编写一个自定义函数：Custom field values in permalink

如下所示：如链接所示：

function jpb_custom_meta_permalink( $link, $post ){
  $post_meta = get_post_meta( $post->ID, \'<insert your meta key here>\', true );
  if( empty( $post_meta ) || !is_string( $post_meta ) )
    $post_meta = \'<insert your default value (could be an empty string) here>\';
  $link = str_replace( \'!!custom_field_placeholder!!\', $post_meta, $link );
  return $link;
}

add_filter( \'post_link\', \'jpb_custom_meta_permalink\', 10, 2 );

function append_sku_string( $link, $post ) {
  $post_meta = get_post_meta( $post->ID, \'_sku\', true );
      if ( \'product\' == get_post_type( $post ) ) {
        $link = $link . \'#\' .$post_meta;
        return $link;
     }
}
add_filter( \'post_type_link\', \'append_sku_string\', 1, 2 );