在admin/goods.php里面搜索create_html_editor('goods_desc', $goods['goods_desc']);
然后把这个改成
if($_REQUEST['act'] == 'add'){
$input_value='默认值';
create_html_editor('goods_desc', $input_value);
}else{
create_html_editor('goods_desc', $goods['goods_desc']);
}这样就OK啦~~