添加到您的函数中。php文件，但使用后不要忘记将其取下！！！！！

function update_all_posts() {
    $args = array(
        \'post_type\' => \'post\',
        \'numberposts\' => -1
    );
    $all_posts = get_posts($args);
    foreach ($all_posts as $single_post){
        $single_post->post_title = $single_post->post_title.\'\';
        wp_update_post( $single_post );
    }
}
add_action( \'wp_loaded\', \'update_all_posts\' );