jsp...九九乘法表，三角形，菱形

<%@ 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>

<%
//九九乘法表
String str="";

for(int i=1;i <= 9;i++)
{
	for(int j=1;j<=i;j++)
	{
		str+=j+"*"+i+"="+j*i+"		";
		//str+=" &nbsp";
	}
	str+="<br>";  //换行
}
%>
<%= str %>

<%
//三角形

String sj="";
for(int i=1;i<=5;i++)
{
	for(int j=1;j<=i;j++)
	{
		sj+="*";
		sj+=" &nbsp";

	}
	sj+="<br>";  //换行
}

%>
<%= sj %>

<%
//菱形

String a = "";
for(int i =1;i<=5;i++)
{
       for(int j=1;j<=4+i;j++)
       {
           if(j<=5-i)
           {
              a+="&nbsp&nbsp";
           }
           else
           {
               a+="*";
           }

       }
       a+="<br>";
}

%>
<%=a %>

<%
String b = "";
for(int k =1;k<=5;k++)
{
       for(int s=1;s<=9-k;s++)
       {
           if(s<=k)
           {
              b+="&nbsp&nbsp";
           }
           else
           {
               b+="*";
           }

       }
       b+="<br>";
}

%>
<%=b %>

　　

</body> </html>