這個方法好像是新的10才有支援, 之前用loader.unload()會有事件偵聽還佔記憶體,或其它難以移除的問題。 用Loader.unloadAndStop()似乎得到了新的解決之道。 呼叫unloadAndStop()會有以下的情況發生。 Sounds are stopped. Stage event listeners are removed. Event listeners for enterFrame, frameConstructed, exitFrame, activate and deactivate are removed. Timers are stopped. Camera and Microphone instances are detached Movie clips are stopped.