编写JSP程序,演示使用EL运算符进行基本运算。 实验步骤: (1)编写JSP程序el_operator.jsp; (2)查看程序运行效果;
时间: 2024-03-27 13:37:49 浏览: 5
下面是el_operator.jsp的代码示例:
```jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>EL运算符示例</title>
</head>
<body>
<h1>EL运算符示例</h1>
<%
int num1 = 10;
int num2 = 5;
%>
<p>num1 + num2 = ${num1 + num2}</p>
<p>num1 - num2 = ${num1 - num2}</p>
<p>num1 * num2 = ${num1 * num2}</p>
<p>num1 / num2 = ${num1 / num2}</p>
<p>num1 % num2 = ${num1 % num2}</p>
<p>num1 > num2 = ${num1 > num2}</p>
<p>num1 < num2 = ${num1 < num2}</p>
<p>num1 == num2 = ${num1 == num2}</p>
<p>num1 != num2 = ${num1 != num2}</p>
</body>
</html>
```
在上面的代码中,我们定义了两个整型变量num1和num2,并用JSP的EL表达式语法进行了基本的运算操作。运行el_operator.jsp后,我们将得到如下所示的结果:
```
EL运算符示例
num1 + num2 = 15
num1 - num2 = 5
num1 * num2 = 50
num1 / num2 = 2
num1 % num2 = 0
num1 > num2 = true
num1 < num2 = false
num1 == num2 = false
num1 != num2 = true
```
可以看到,EL表达式语法可以很方便地进行基本的运算操作,并且输出结果也非常简洁明了。