版权声明: https://blog.csdn.net/qq_28256783/article/details/82254157
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions"%>
<c:forEach items="${list}" var="sign" varStatus="xh">
${xh.count}序号从1开始
${xh.index}序号从0开始
${xh.last}最后一个序号
${xh.first}第一个序号
</c:forEach>
list的长度是:${fn:length(list)}