我的帖子只有一个类别。以下代码：
$categories = get_the_category();
给我这个结果：
Array
(
[0] => stdClass Object
(
[term_id] => 22
[name] => Style Guide
[slug] => style-guide
[term_group] => 0
[term_taxonomy_id] => 22
[taxonomy] => category
[description] =>
[parent] => 0
[count] => 2
[object_id] => 391
[cat_ID] => 22
[category_count] => 2
[category_description] =>
[cat_name] => Style Guide
[category_nicename] => style-guide
[category_parent] => 0
)
)
为什么它是双重的？
