屏蔽PrintScreen:
<body MS_POSITIONING="GridLayout" onkeydown="if(event.keyCode==72) return false;">屏蔽ctr+P
if ((event.ctrlKey)&&(event.keyCode==78)) //屏蔽 Ctrl+n
event.returnValue=false;
<body MS_POSITIONING="GridLayout" onkeydown="if(event.keyCode==72) return false;">屏蔽ctr+P
if ((event.ctrlKey)&&(event.keyCode==78)) //屏蔽 Ctrl+n
event.returnValue=false;
if ((event.ctrlKey)&&(event.keyCode==80)) //屏蔽 Ctrl+n
event.returnValue=false;