flash调用js中的方法,让js传递变量给flash的办法及思路

function GetSwfUrl()
{
var pics1 = parseInt(Math.random()*5)+1;
var pics2 = parseInt(Math.random()*5)+1;
document.my_swfId.SetVariable("pic01Num", pics1);
document.my_swfId.SetVariable("pic02Num", pics2);
}

getURL("javascript:GetSwfUrl()");

import flash.external.ExternalInterface;//导入 ExternalInterface 类
ExternalInterface.call("GetSwfUrl()");