<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%>
<html>
<head>
<title>My JSP ‘MyJsp.jsp‘ starting page</title>
</head>
<body>
<%int a=0,i,j;%>
<%for(j=1;j<10;j++){
for(i=1;i<=j;i++){out.print(i+" ");}out.print("<br/>");}%>
</body>
</html>
原文：http://www.cnblogs.com/jgrs/p/7599078.html