关于phpcms上传错误404的解决办法

phpcms上传错误404怎么办？phpcms v9附件上传过程中发生404错误

客户在用phpcms v9的多文件上传功能上传附件时报“上传错误404”。估计是实例化是路径发生了错误。

打开/phpcms/modules/attachment/functions/global.func.php

将 

upload_url:"'.$upload_path.'index.php?m=attachment&c=attachments&a=swfupload&dosubmit=1",