在现有WordPress模板函数文件functions.php中，添加以下代码即可：
 

add_filter('upload_mimes', 'tbi_upload_mimes');
function tbi_upload_mimes($mimes = array()) {
$mimes['svg'] = 'image/svg+xml';
$mimes['webp'] = 'image/webp';
$mimes['ico'] = 'image/x-icon';
return $mimes;
}