Core_set_remove.jsp

<c:set>和<c:remove> 的用法

初始设置

pageScope.number	2
requestScope.number	3
sessionScope.number	4

<c:remove var="number" scope="page" />之后

pageScope.number	No Data
requestScope.number	3
sessionScope.number	4

<c:remove var="number" />之后

pageScope.number	No Data
requestScope.number	No Data
sessionScope.number	No Data