<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<!-- 这个是全局变量多人访问会自增 -->
<%!int a = 1;%>
<!-- 这个是局部变量多人访问不会自增 -->
<%
int b = 1;
out.println("局部输出b= " + (b++));
%>
<%
out.println("全局输出a= " + (a++));
out.println("局部输出b= " + (b++));
%>
</body>
</html>
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<!-- 这个是全局变量多人访问会自增 -->
<%!int a = 1;%>
<!-- 这个是局部变量多人访问不会自增 -->
<%
int b = 1;
out.println("局部输出b= " + (b++));
%>
<%
out.println("全局输出a= " + (a++));
out.println("局部输出b= " + (b++));
%>
</body>
</html>