编写一个简易的Servlet计算器,暂时仅能实现 + - * / % 五种运算
jsp界面：
1 <%@ page language="java" contentType="text/html; charset=UTF-8" 2 pageEncoding="UTF-8"%> 3 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 4 <html> 5 <head> 6 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 7 <title>Servlet计算器</title> 8 </head> 9 <body> 10 <form action="TestJSQ" method="post"> 11 <input type="text" name="shu1"> 12 <input type="text" name="yunsuan" style="font-size: 12px; width: 12px;"> 13 <input type="text" name="shu2"> 14 <input type="submit" value="="> 15 16 </form> 17 </body> 18 </html>