问WP编辑器在WordPress中的前端不起作用

EN

$settings = array(
    'wpautop' => true,
    'postContent' => 'content',
    'media_buttons' => false,
    'tinymce' => array(
    'theme_advanced_buttons1' => 'bold,italic,underline,blockquote,separator,strikethrough,bullist,numlist,justifyleft,justifycenter,justifyright,undo,redo,link,unlink,fullscreen',

    'theme_advanced_buttons2' => 'pastetext,pasteword,removeformat,|,charmap,|,outdent,indent,|,undo,redo',

    'theme_advanced_buttons3' => '',

    'theme_advanced_buttons4' => ''
    ),

    'quicktags' => array(
        'buttons' => 'b,i,ul,ol,li,link,close'
    )
);
wp_editor( $postContent, 'postContent', $settings );