<input type="text" id="username" name="username" value="zzsky" onpaste="return false" oncontextmenu="return false" oncopy="return false" oncut="return false">
<input type="text" id="username" name="username" value="zzsky" onpaste="return false" oncontextmenu="return false" oncopy="return false" oncut="return false">
![實作電腦功能[圖]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)