<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> frame </TITLE>
</HEAD>
<frameset rows="50%,50%">
<frame name=top src="top.html">
<frame name=bottom src="bottom.html">
</frameset>
</HTML>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> top.html </TITLE>
</HEAD>
<BODY>
<input type=button value="刷新1" onclick="window.parent.frames[1].location.reload()"><br>
<input type=button value="刷新2" onclick="window.parent.frames.bottom.location.reload()"><br>
<input type=button value="刷新3" onclick="window.parent.frames['bottom'].location.reload()"><br>
<input type=button value="刷新4" onclick="window.parent.frames.item(1).location.reload()"><br>
<input type=button value="刷新5" onclick="window.parent.frames.item('bottom').location.reload()"><br>
<input type=button value="刷新6" onclick="window.parent.bottom.location.reload()"><br>
<input type=button value="刷新7" onclick="window.parent['bottom'].location.reload()"><br>
</BODY>
</HTML>