page1.jsp的代碼：<jsp:include page="page2.jsp" /><%?? int? i=4;%><%=i% >page2.jsp的頁(yè)面：<%! int i=6;%>---------------------如果換成局部變量的話，只會(huì)輸出4；申明成全局變量就會(huì)變成輸出6? 4；<%=i%>