1~100的偶数和是?(素数还没会）
答题
<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="<%=basePath%>"> <title>My JSP 'index.jsp' starting page</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> <!-- <link rel="stylesheet" type="text/css" href="styles.css"> --> </head> <body> 求1-100的偶数和? <hr> <br> </body> <% int a, sum = 0; for (a = 1; a <= 100; a++) { if (a % 2 == 0) { sum += a; } } %> 1-100中间的偶数和是: <%=sum%> </html>
百度后
将
<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%> 改为 <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> （位于作业第一行）
