通过转到主题编辑器，您可以在functions.php文件：

  function twentytwentychild_excerpt_more_add_continue_reading( $more ) {
    return \' [...] <div class="read-more-button-wrap"><a href="\' . get_permalink( get_the_ID() ) . \'" class="more-link"><span class="faux-button">Continue reading</span> <span class="screen-reader-text">“\' . get_the_title( get_the_ID() ) . \'”</span></a></div>\';
}
add_filter(\'excerpt_more\', \'twentytwentychild_excerpt_more_add_continue_reading\' );