问题
I have a flash swf file without access to it's source. Can I use only JavaScript to invoke/initiate the action of the flash functions within the swf file?
Or does the swf need active listeners to respond to JavaScript?
回答1:
You cannot communicate with an SWF (at least an AVM2 (AS3 based) SWF) unless it has registered callback methods in it. The ExternalInterface class has an addCallback() method that:
Registers an ActionScript method as callable from the container. After a successful invocation of
addCallBack(), the registered function in Flash Player can be called by JavaScript or ActiveX code in the container.
来源：https://stackoverflow.com/questions/1581976/tool-to-invoke-actions-in-flash-swf-via-javascript