我在theme的functions.php 使用ajax的文件，原理如下：

add_action(\'admin_head\', \'rw_script\');
function rw_script() {
    echo \'
    <script type="text/javascript">
        // delete image
        $(".delete_image").click(function(){
            var data = $(this).attr("rel");
            $.post(
                ajaxurl,
                {action: \\\'rw_delete_image\\\', data: data}, function(response){
                    alert(response); // debug
                }
            );

            return false;
        });
    });
    </script>\';
}
function delete_image() {
    if (isset($_POST[\'attach_id\'])) wp_delete_attachment($_POST[\'attach_id\']);
        die();
}
add_action(\'wp_ajax_rw_delete_image\', \'delete_image\');

它工作得很好。但当我将其转换为OOP时，ajax不起作用：

class RW_Test {
    function __construct() {
        add_action(\'admin_head\', array(&$this, \'rw_script\'));
        add_action(\'wp_ajax_rw_delete_image\', array(&$this, \'delete_image\'));
    }
    function rw_script() {
        echo \'
        <script type="text/javascript">
            // delete image
            $(".delete_image").click(function(){
                var data = $(this).attr("rel");
                $.post(
                    ajaxurl,
                    {action: \\\'rw_delete_image\\\', data: data}, function(response){
                        alert(response); // debug
                    }
                );

                return false;
            });
        });
        </script>\';
    }
    function delete_image() {
        if (isset($_POST[\'attach_id\'])) wp_delete_attachment($_POST[\'attach_id\']);
            die();
    }
}

javascript工作正常，即当我单击删除链接时，数据被正确发送。但删除图像的操作未启动。

你知道怎么解决这个问题吗？请帮帮我。非常感谢。

$.post(
    ajaxurl,
    {action: \'rw_delete_image\', attach_id: data}, function(response){
         alert(response); // debug
    }
);