用webbrowser如何只显示网页中的其中一个frame
<frameset rows='1500,*' border='0' framespacing='0' frameborder=0 marginwidth='0' marginheight='0' scrolling="yes">
<frame src='https://221.176.1.140:443/input.php?wlanacip=218.201.153.7&wlanacname=0001.0534.531.00&wlanuserip=111.14.33.15&wlanacssid=&fromlocation=index' name='input' scrolling='yes' marginwidth='0' marginheight='0'> 
<frame src='https://221.176.1.140:443/input.php?wlanacip=218.201.153.7&wlanacname=0001.0534.531.00&wlanuserip=111.14.33.15&wlanacssid=&fromlocation=index' name='input' scrolling='yes' marginwidth='0' marginheight='0'> 
<frame src='https://221.176.1.140:443/input.php?wlanacip=218.201.153.7&wlanacname=0001.0534.531.00&wlanuserip=111.14.33.15&wlanacssid=&fromlocation=index' name='input' scrolling='yes' marginwidth='0' marginheight='0'> 
<frameset>
怎样才可以让网页只显示上面其中一个frame

------解决方案--------------------
每个iframe都有一个URL，把webbrowser的URL指向这个即可