calculate.jsp

来自「4种方法实现JSP计算器,通过该文件你可以学到jsp 实现计算器不同的方法」· JSP 代码 · 共 30 行

JSP
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<%@page language="java" contentType="text/html;charset=gb2312"%><%@ page info="a hello world example" %><%!    String calculate(double data1,double data2,int type)   {       String result="";       double t;       switch(type)       {           case 1:result=data1+"+"+data2+"="+(data1+data2);break;           case 2:result=data1+"-"+data2+"="+(data1-data2);break;           case 3:result=data1+"*"+data2+"="+(data1*data2);break;           default:result=data1+"/"+data2+"="+(data1/data2);break;       }       return result;   }%><html>    <head>             <title>计算结果</title>    </head>    <body>          <%            double data1=Double.parseDouble(request.getParameter("data1"));            double data2=Double.parseDouble(request.getParameter("data2"));            int type =Integer.parseInt(request.getParameter("type"));            out.println(calculate(data1,data2,type));        %>    </body></html>

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