如何设置WordPress文章特色图像(Featured Image)

//使WordPress支持post thumbnail

if ( function_exists( 'add_theme_support' ) ) {

    add_theme_support( 'post-thumbnails' );

}

add_image_size( $name, $width, $height, $crop );

//add post thumbnails

if ( function_exists( 'add_theme_support' ) ) {

    add_theme_support( 'post-thumbnails' );

}

if ( function_exists( 'add_image_size' ) ) {

    add_image_size( 'customized-post-thumb', 100, 120 );

}

<?php

if ( has_post_thumbnail() ) { // check if the post has a Post Thumbnail assigned to it.

  the_post_thumbnail();

}

?>

<?php the_content(); ?>

the_post_thumbnail();                  // 无参数，默认调用Thumbnail

the_post_thumbnail('thumbnail');       // Thumbnail (默认尺寸 150px x 150px max)

the_post_thumbnail('medium');          // Medium resolution (default 300px x 300px max)

the_post_thumbnail('large');           // Large resolution (default 640px x 640px max)

the_post_thumbnail('full');            // Full resolution (original size uploaded)

the_post_thumbnail( array(100,100) );  // Other resolutions