打开 wp-includes/category-template.php 搜索 wp_tag_cloud

function wp_tag_cloud( $args = '' ) {
	$defaults = array(
		'smallest' => 8, 'largest' => 22, 'unit' => 'pt', 'number' => 45,
		'format' => 'flat', 'separator' => "\n", 'orderby' => 'name', 'order' => 'ASC',
		'exclude' => '', 'include' => '', 'link' => 'view', 'taxonomy' => 'post_tag', 'post_type' => '', 'echo' => true,
		'show_count' => 1,
	);

其中’show_count’ => 1,这个值是控制标签后面的数字的，1为显示，0为不显示。