我用一些代码

将此添加到函数。php更改上载的文件目录

// change dir for anomaly images
function example_Dir( $param ){
    $param[\'path\'] = \'/home/yoursite/domains/yoursite.com/public_html/wp-content/uploads/example\';
    $param[\'url\'] = \' https://yoursite.com/wp-content/uploads/example\';
    return $param;
}

<form action="" enctype="multipart/form-data" method="post" >
      <input type="file" name="file">
      <input type="submit">
</form>

if(isset($_FILES[\'file\'])){
$file = $_FILES[\'file\'];
    add_filter(\'upload_dir\', \'example_Dir\');
    $Result = wp_handle_upload($file  , $upload_overrides);
    remove_filter(\'upload_dir\' , \'example_Dir\');
}