<table border="0" align="center" cellpadding="0" cellspacing="5"><tr><td><c:choose><%String backurl=(String)request.getAttribute("BackURL");if(backurl.length()>3){String ext=backurl.substring(backurl.length()-3);if(ext.equalsIgnoreCase("jsp")){ %><a href="javascript:location.href='${BackURL}'" target="main"> <imgsrc="<%=refpath%>/images/btn_fanhui.png" width="69"height="23" border="0" align="middle"> </a><%}else{%><a href="javascript:location.href='${BackURL}'"> <imgsrc="<%=refpath%>/images/btn_fanhui.png" width="69"height="23" border="0" align="middle"> </a><%}} %></c:choose></td></tr></table>麻煩高手解釋下這段代碼那里的main會跳到哪里去
關于下面語句中，jsp中target="main"的意思，不是很理解！
慕田峪9158850
2021-06-15 15:11:40
