摘要：
<script language="Javascript"><!--function document.oncontextmenu(){event.returnValue=false;}//屏蔽鼠标右键function window.onhelp(){return false} //屏蔽F1帮助function document.onkeydown(){ if ((window.event.altKey)&& ((window.event.keyCode==37)|| //屏蔽 Alt+ 方向键 ← (window.event.keyCod 阅读全文
