这是一个简单的大纲，所以不要在生产中使用它，但这是一个工作示例。

定义模板并将其放置在templates/template-portfolio-template.php 在你的主题中。

<?php
/*
 * Template Name: Portfolio Template
 * Description: Page template to display portfolio custom post types
 */

echo \'This is the Portfolio Template!\';

function programmatically_create_post($post_type = \'post\', $title, $content, $template_rel_path=\'\')
{
    // Initialize the page ID to -1. This indicates no action has been taken.
    $post_id = -1;

    // Prep
    $author_id = get_current_user_id();
    $title = wp_strip_all_tags( $title ); // remove any junk
    $slug = sanitize_title ($title); // converts to a usable post_name
    $post_type = post_type_exists($post_type) ? $post_type : \'post\'; // make sure it exists

    // If the page doesn\'t already exist, then create it
    if( null == get_page_by_title( $title ) ) {

        // Set the post ID so that we know the post was created successfully
        $post_id = wp_insert_post( 
          array(
          \'post_name\'           =>  $slug,
          \'post_title\'          =>  $title,
          \'post_content\'        =>  $content,
          \'post_type\'           =>  $post_type,
          \'post_author\'         =>  $author_id,
          \'comment_status\'      =>  \'closed\',
          \'ping_status\'         =>  \'closed\',
          \'post_status\'         =>  \'publish\',
          )
        );

    if( $post_id && $post_id > 0 && ! empty( $template_rel_path)) {

      // make sure the template exists
      $template_full_path = trailingslashit( get_stylesheet_directory() ) . $template_rel_path;
      if( file_exists( $template_full_path )) {

         // set the post meta data -- use relative path
         update_post_meta( $post_id, \'_wp_page_template\', $template_rel_path );
      }
    }

    // Otherwise, we\'ll stop
    } else {
            // Arbitrarily use -2 to indicate that the page with the title already exists
            $post_id = -2;

    } // end if

  return $post_id;

} // end programmatically_create_post

add_action( \'init\', function(){

  $template = \'templates/template-portfolio-template.php\';

  $post_id_temp = programmatically_create_post( \'page\', \'My Page With a Template\', \'This is some sample content for the template! \' . timer_stop(4), $template );

  $post_id_no_temp = programmatically_create_post( \'page\', \'My Page Without A Template\', \'This is some sample content! \' . timer_stop(4), \'\' );

  if( -1 == $post_id_temp || -2 == $post_id_temp ) { // The post wasn\'t created or the page already exists
     //...
  } else {
     $post = get_post($post_id_temp);
     $url = get_permalink($post->ID); // your new page url
  }

  if( -1 == $post_id_no_temp || -2 == $post_id_no_temp ) { // The post wasn\'t created or the page already exists
     //...
  } else {
     $post = get_post($post_id_no_temp);
     $url = get_permalink($post->ID); // your new page url 
  }

} );