将四则运算的程序改成网页版如下
1.源代码
主页 a.jsp
<%@ 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 charset="UTF-8">
<title>二柱子答题网</title>
<link rel=‘stylesheet prefetch‘ href=‘http://netdna.bootstrapcdn.com/font-awesome/4.0.3/css/font-awesome.min.css‘>
<link rel=‘stylesheet prefetch‘ href=‘http://puertokhalid.com/up/demos/puerto-Mega_Menu/css/normalize.css‘>
<link rel="stylesheet" href="css/style.css" media="screen" type="text/css" />
<script language="javascript">
setInterval(test,2000);
var array=new Array();
var index=0;
var array= new Array("images/mai1.jpg","images/mai2.jpg","images/mai3.jpg");
function test()
{
var myimg=document.getElementById("imgs");
if(index==array.length-1)
{
index=0;
}
else
{
index++;
}
myimg.src=array[index];
}
</script>
</head>
<body>
<div class="title">
<h1>二柱子答题网</h1>
</div>
<div class="container">
<nav>
<ul class="mcd-menu">
<li>
<a href="about.jsp">
<i class="fa fa-home"></i>
<strong>About us</strong>
<small>sweet home</small>
</a>
</li>
<li>
<a href="" class="active">
<i class="fa fa-edit"></i>
<strong>Home</strong>
<small>sweet home</small>
</a>
</li>
<li>
<a href="start.jsp">
<i class="fa fa-gift"></i>
<strong>Questions</strong>
<small>sweet home</small>
</a>
</li>
<li>
<a href="da.jsp">
<i class="fa fa-globe"></i>
<strong>Answers</strong>
<small>sweet home</small>
</a>
</li>
<li>
<a href="amuse.jsp">
<i class="fa fa-comments-o"></i>
<strong>Amusement</strong>
<small>sweet home</small>
</a>
</li>
</ul>
</nav>
</div>
<div style="text-align:center;clear:both">
<script src="/gg_bd_ad_720x90.js" type="text/javascript"></script>
<script src="/follow.js" type="text/javascript"></script>
</div>
<div class="pic">
<img id="imgs" src="images/mai1.jpg" />
</div>
<div class="gif">
<img src="images/1236.gif" />
</div>
</body>
</html>
start.jsp
<%@ page language="java" contentType="text/html; charset=gb2312"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>出题器</title>
<style type="text/css">
body{
background:url("images/huawen3.jpg")
no-repeat;
background-size:cover;
}
div{
margin:200px 100px auto 200px;
position:relative;
width:500px;
height:400px;
}
</style>
</head>
<body>
<div>
<h2 align="center">四则运算出题器</h2>
<font size=4>
<form name="form1" action="process1.jsp" method="post">
<table align="center">
<tr>
<td>题目类型:</td>
<td>
<input type="radio" name="lx" value="整数" checked>整数
<input type="radio" name="lx" value="真分数">真分数
</td>
</tr>
<tr>
<td>数值范围:1至</td>
<td>
<input type="text" name="maxz" value="100">
</td>
</tr>
<tr>
<td>加减有无负数:</td>
<td>
<input type="radio" name="fushu" value="无" checked>无
<input type="radio" name="fushu" value="有">有
</td>
</tr>
<tr>
<td>是否有乘除法:</td>
<td>
<input type="radio" name="chengchu" value="无" checked>无
<input type="radio" name="chengchu" value="有">有
</td>
</tr>
<tr>
<td>除法有无余数:</td>
<td>
<input type="radio" name="yushu" value="无" checked>无
<input type="radio" name="yushu" value="有">有
</td>
</tr>
<tr>
<td>题数:</td>
<td>
<input type="text" name="num" value="5">
</td>
</tr>
<tr>
<td></td>
<td><input type="submit" value="开始出题!"></td>
</tr>
</table>
</form>
</font>
</div>
</body>
</html>
process1.jsp
<%@ page language="java" import="java.util.*, java.sql.*,szysl.Szys" contentType="text/html; charset=gb2312"
pageEncoding="UTF-8"%>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt"%>
<fmt:requestEncoding value="gb2312"/>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<style type="text/css">
body{
background:url("images/huawen3.jpg")
no-repeat;
background-size:cover;
}
div{
margin:200px 100px auto 200px;
position:relative;
width:500px;
height:400px;
}
.tb1{
border-left-style:solid;
border-bottom-style:solid;
border-top-style:solid;
border-right-style:solid;
border-width:2px;
}
#submit{
height: 30px;
background: rgba(0,0,0,0.1);
border:solid #ccc 1px;
border-radius: 3px;
}
#submit:hover{
cursor: pointer;
background:#D8D8D8;
}
</style>
<title>出题</title>
</head>
<body>
<div>
<h2 align="center">请填写答案:</h2>
<font size=4>
<form name="form2" action="result.jsp" method="post">
<table align="center">
<tr>
<th>题目</th>
<th>答案</th>
</tr>
<jsp:useBean id="sz" class="szysl.Szys" scope="request"/>
<jsp:useBean id="db" class="szysl.DB" scope="request"/>
<%
int n1=2,n3=2,n4=2,n7=2;
if((request.getParameter("fushu")).equals("有"))
{
n3 = 1;
}
if((request.getParameter("chengchu")).equals("有"))
{
n4 = 1;
}
if((request.getParameter("yushu")).equals("有"))
{
n7 = 1;
}
if((request.getParameter("lx")).equals("整数"))
{
n1 = 1;
}
int y = Integer.parseInt(request.getParameter("maxz"));
int n = Integer.parseInt(request.getParameter("num"));
//清空数据库元素
String sql="delete from szys";
Statement stmt = db.getConn().createStatement();
stmt.execute(sql);
//生成算式,并存储在数据库中
if(n1==1)
sz.zheng(y,n,n3,n4,n7);
else sz.zhenfs(y,n,n3,n4,n7);
for(int i = 0;i < n;i++)
{
out.print("<tr><td>");
String sq = "select * from szys where num=?";
PreparedStatement st = null;
st = db.getConn().prepareStatement(sq);
st.setInt(1, i+1);
ResultSet rs = st.executeQuery();
while(rs.next())
{
out.print("<tr><td>" + rs.getString(2) + "</td>");
}
%>
<td><input name="result<%=i %>" id="result" type="text">
</td></tr>
<%} %>
<tr>
<td>
<input type="hidden" name="num" value="${param.num}">
</td>
</tr>
<tr>
<td></td>
<td><input type="submit" id="submit" value="提交答案"></td>
</tr>
</table>
</form>
</font>
</div>
</body>
</html>
result.jsp
<%@ page language="java" import="java.sql.*" contentType="text/html; charset=gb2312"
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>结果</title>
<style type="text/css">
body{
background:url("images/huawen3.jpg")
no-repeat;
background-size:cover;
}
div{
margin:200px 100px auto 200px;
position:relative;
width:500px;
height:400px;
}
</style>
</head>
<body>
<div>
<h1 align="center">成绩</h1>
<font size=4>
<form name="form3" action="a.jsp" method="post">
<table align="center">
<jsp:useBean id="db" class="szysl.DB" scope="request"/>
<%
int n = Integer.parseInt(request.getParameter("num"));
String x = "",y = "",z = "";
for(int i = 0;i < n;i++)
{
x = (String)request.getParameter("result"+i);
String sq = "select * from szys where num=?";
PreparedStatement st = null;
st = db.getConn().prepareStatement(sq);
st.setInt(1, i+1);
ResultSet rs = st.executeQuery();
while(rs.next())
{
out.print("<tr><td>" + rs.getString(2));
if(rs.getString(3).equals(x))
{
out.print("<td>" + x + "</td>");
%>
<td>正确!</td>
</tr>
<% y=y+" "+rs.getString(1);%>
<%
}
else
{
out.print("<td>" + x + "</td>");
%>
<td>错误!正确答案为<%=rs.getString(3)%></td>
</tr>
<% z=z+" "+rs.getString(1);%>
<%
}
}
}
out.print("<td>" + y + "</td>");
%>
<td>为正确的题号</td>
</tr>
<%
out.print("<td>" + z + "</td>");
%>
<td>为错误的题号</td>
</tr>
<%
%>
<td><input type="submit" id="submit" value="返回主页"></td>
</tr>
</table>
</form>
</font>
</div>
</body>
</html>
about.jsp
<%@ 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>about us</title>
<style type="text/css">
body{
background:url("images/huawen2.jpg")
no-repeat;
background-size:cover;
}
div{
margin:200px 200px 400px 400px;
position:relative;
width:800px;
height:400px;
}
.fo{
font-size:100px;
font-family:FangSong;
}
</style>
</head>
<body>
<div>
<form name="form4" class="fo" action="a.jsp" method="post">
<table align="center">
<tr>
<td>Designed by:</td>
</tr>
<tr>
<td> </td>
<td>陈孜洋 刘玉</td>
</tr>
<tr>
<td><input type="submit" id="submit" value="返回主页"></td>
</tr>
</table>
</form>
</div>
</body>
</html>
amuse.jsp
<%@ 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>轻松一刻</title>
<style type="text/css">
body{
background:url("images/huawen1.jpg")
no-repeat;
background-size:cover;
}
div{
margin:400px 200px 200px 400px;
position:relative;
width:800px;
height:400px;
}
.fo{
font-size:30px;
font-family:FangSong;
}
</style>
</head>
<body>
<div>
<form name="form5" class="fo" action="a.jsp" method="post">
<table align="center">
<tr>
<td>关于程序员的小笑话:</td>
</tr>
<tr>
<td>1、栈和队列的区别是啥? 吃多了拉就是队列;吃多了吐就是栈</td>
</tr>
<tr>
<td>2、世界上最遥远的距离不是生与死,而是你亲手制造的 BUG 就在你眼前,你却怎么都找不到她。</td>
</tr>
<tr>
<td>3、《c++程序设计语言》比《c程序设计语言》厚了几倍...果然有了对象就麻烦很多...</td>
</tr>
<tr>
<td>4、怎么使用面向对象的方式变得富有?继承。</td>
</tr>
<tr>
<td>5、为什么程序员总是分不清万圣节和圣诞节?因为 Oct 31 == Dec 25。</td>
</tr>
<tr>
<td>6、Keyboard not found ... press F1 to continue</td>
</tr>
<tr>
<td>7、杀一个程序员不需要用枪,改三次需求就可以了</td>
</tr>
<tr>
<td><input type="submit" id="submit" value="返回主页"></td>
</tr>
</table>
</form>
</div>
</body>
</html>
da.jsp
<%@ page language="java" import="java.sql.*" contentType="text/html; charset=gb2312"
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>正确答案</title>
<style type="text/css">
body{
background:url("images/huawen3.jpg")
no-repeat;
background-size:cover;
}
div{
margin:400px 100px auto 200px;
position:relative;
}
</style>
</head>
<body>
<div>
<font size=4>
<center><h1>正确答案</h1></center>
<form name="form5" action="a.jsp" method="post">
<table align=center width=500 border=1>
<tr><td>题目<td>正确答案
<jsp:useBean id="db" class="szysl.DB" scope="request"/>
<%
String s="select * from szys";
PreparedStatement st = null;
st = db.getConn().prepareStatement(s);
ResultSet rs = st.executeQuery();
while(rs.next())
{
out.println("</tr><td>"+rs.getString(2)+"</td><td>"+rs.getString(3)+"</td><tr>");
}
rs.close();
%>
<td><input type="submit" id="submit" value="返回主页"></td>
</tr>
</table>
</form>
</font>
</div>
</body>
</html>
style.css
body {
background: #EEE;
overflow-x:hidden;
}
.clearfix:before,
.clearfix:after {
content: " ";
display: table;
}
.clearfix:after {
clear: both;
}
.clearfix {
*zoom: 1;
}
.container {
position: relative;
margin:150px 100px 150px 100px;
padding: 50px 0;
clear: both;
height:400px;
float:left;
}
.title{
font-size:30px;
font-family:"FangSong";
width:400px;
height:100px;
position:absolute;
z-index:99;
left:50px;
top:10px;
}
.pic{
background-size:cover;
width:900px;
height:500px;
position:absolute;
z-index:99;
left:500px;
top:50px;
}
.gif{
width:400px;
height:400px;
position:absolute;
z-index:99;
left:50px;
top:600px;
}
@media only screen and (min-width: 1200px) {
.container {
width: 300px;
}
}
@media only screen and (min-width: 960px) and (max-width: 1199px) {
.container {
width: 250px;
}
}
@media only screen and (min-width: 768px) and (max-width: 959px) {
.container {
width: 150px;
}
}
@media only screen and (min-width: 480px) and (max-width: 767px) {
.container {
width: 130px;
margin: 0 auto;
}
}
@media only screen and (max-width: 479px) {
.container {
width: 120px;
margin: 0 auto;
}
}
.mcd-menu {
list-style: none;
padding: 0;
margin: 0;
background: #FFF;
/*height: 100px;*/
border-radius: 2px;
-moz-border-radius: 2px;
-webkit-border-radius: 2px;
/* == */
width: 250px;
/* == */
}
.mcd-menu li {
position: relative;
/*float:left;*/
}
.mcd-menu li a {
display: block;
text-decoration: none;
padding: 12px 20px;
color: #777;
/*text-align: center;
border-right: 1px solid #E7E7E7;*/
/* == */
text-align: left;
height: 36px;
position: relative;
border-bottom: 1px solid #EEE;
/* == */
}
.mcd-menu li a i {
/*display: block;
font-size: 30px;
margin-bottom: 10px;*/
/* == */
float: left;
font-size: 20px;
margin: 0 10px 0 0;
/* == */
}
/* == */
.mcd-menu li a p {
float: left;
margin: 0 ;
}
/* == */
.mcd-menu li a strong {
display: block;
text-transform: uppercase;
}
.mcd-menu li a small {
display: block;
font-size: 10px;
}
.mcd-menu li a i, .mcd-menu li a strong, .mcd-menu li a small {
position: relative;
transition: all 300ms linear;
-o-transition: all 300ms linear;
-ms-transition: all 300ms linear;
-moz-transition: all 300ms linear;
-webkit-transition: all 300ms linear;
}
.mcd-menu li:hover > a i {
opacity: 1;
-webkit-animation: moveFromTop 300ms ease-in-out;
-moz-animation: moveFromTop 300ms ease-in-out;
-ms-animation: moveFromTop 300ms ease-in-out;
-o-animation: moveFromTop 300ms ease-in-out;
animation: moveFromTop 300ms ease-in-out;
}
.mcd-menu li:hover a strong {
opacity: 1;
-webkit-animation: moveFromLeft 300ms ease-in-out;
-moz-animation: moveFromLeft 300ms ease-in-out;
-ms-animation: moveFromLeft 300ms ease-in-out;
-o-animation: moveFromLeft 300ms ease-in-out;
animation: moveFromLeft 300ms ease-in-out;
}
.mcd-menu li:hover a small {
opacity: 1;
-webkit-animation: moveFromRight 300ms ease-in-out;
-moz-animation: moveFromRight 300ms ease-in-out;
-ms-animation: moveFromRight 300ms ease-in-out;
-o-animation: moveFromRight 300ms ease-in-out;
animation: moveFromRight 300ms ease-in-out;
}
.mcd-menu li:hover > a {
color: #e67e22;
}
.mcd-menu li a.active {
position: relative;
color: #e67e22;
border:0;
/*border-top: 4px solid #e67e22;
border-bottom: 4px solid #e67e22;
margin-top: -4px;*/
box-shadow: 0 0 5px #DDD;
-moz-box-shadow: 0 0 5px #DDD;
-webkit-box-shadow: 0 0 5px #DDD;
/* == */
border-left: 4px solid #e67e22;
border-right: 4px solid #e67e22;
margin: 0 -4px;
/* == */
}
.mcd-menu li a.active:before {
content: "";
position: absolute;
/*top: 0;
left: 45%;
border-top: 5px solid #e67e22;
border-left: 5px solid transparent;
border-right: 5px solid transparent;*/
/* == */
top: 42%;
left: 0;
border-left: 5px solid #e67e22;
border-top: 5px solid transparent;
border-bottom: 5px solid transparent;
/* == */
}
/* == */
.mcd-menu li a.active:after {
content: "";
position: absolute;
top: 42%;
right: 0;
border-right: 5px solid #e67e22;
border-top: 5px solid transparent;
border-bottom: 5px solid transparent;
}
/* == */
@-webkit-keyframes moveFromTop {
from {
opacity: 0;
-webkit-transform: translateY(200%);
-moz-transform: translateY(200%);
-ms-transform: translateY(200%);
-o-transform: translateY(200%);
transform: translateY(200%);
}
to {
opacity: 1;
-webkit-transform: translateY(0%);
-moz-transform: translateY(0%);
-ms-transform: translateY(0%);
-o-transform: translateY(0%);
transform: translateY(0%);
}
}
@-webkit-keyframes moveFromLeft {
from {
opacity: 0;
-webkit-transform: translateX(200%);
-moz-transform: translateX(200%);
-ms-transform: translateX(200%);
-o-transform: translateX(200%);
transform: translateX(200%);
}
to {
opacity: 1;
-webkit-transform: translateX(0%);
-moz-transform: translateX(0%);
-ms-transform: translateX(0%);
-o-transform: translateX(0%);
transform: translateX(0%);
}
}
@-webkit-keyframes moveFromRight {
from {
opacity: 0;
-webkit-transform: translateX(-200%);
-moz-transform: translateX(-200%);
-ms-transform: translateX(-200%);
-o-transform: translateX(-200%);
transform: translateX(-200%);
}
to {
opacity: 1;
-webkit-transform: translateX(0%);
-moz-transform: translateX(0%);
-ms-transform: translateX(0%);
-o-transform: translateX(0%);
transform: translateX(0%);
}
}
.mcd-menu li ul,
.mcd-menu li ul li ul {
position: absolute;
height: auto;
min-width: 200px;
padding: 0;
margin: 0;
background: #FFF;
/*border-top: 4px solid #e67e22;*/
opacity: 0;
visibility: hidden;
transition: all 300ms linear;
-o-transition: all 300ms linear;
-ms-transition: all 300ms linear;
-moz-transition: all 300ms linear;
-webkit-transition: all 300ms linear;
/*top: 130px;*/
z-index: 1000;
/* == */
left:280px;
top: 0px;
border-left: 4px solid #e67e22;
/* == */
}
.mcd-menu li ul:before {
content: "";
position: absolute;
/*top: -8px;
left: 23%;
border-bottom: 5px solid #e67e22;
border-left: 5px solid transparent;
border-right: 5px solid transparent;*/
/* == */
top: 25px;
left: -9px;
border-right: 5px solid #e67e22;
border-bottom: 5px solid transparent;
border-top: 5px solid transparent;
/* == */
}
.mcd-menu li:hover > ul,
.mcd-menu li ul li:hover > ul {
display: block;
opacity: 1;
visibility: visible;
/*top: 100px;*/
/* == */
left:250px;
/* == */
}
/*.mcd-menu li ul li {
float: none;
}*/
.mcd-menu li ul li a {
padding: 10px;
text-align: left;
border: 0;
border-bottom: 1px solid #EEE;
/* == */
height: auto;
/* == */
}
.mcd-menu li ul li a i {
font-size: 16px;
display: inline-block;
margin: 0 10px 0 0;
}
.mcd-menu li ul li ul {
left: 230px;
top: 0;
border: 0;
border-left: 4px solid #e67e22;
}
.mcd-menu li ul li ul:before {
content: "";
position: absolute;
top: 15px;
/*left: -14px;*/
/* == */
left: -9px;
/* == */
border-right: 5px solid #e67e22;
border-bottom: 5px solid transparent;
border-top: 5px solid transparent;
}
.mcd-menu li ul li:hover > ul {
top: 0px;
left: 200px;
}
/*.mcd-menu li.float {
float: right;
}*/
.mcd-menu li a.search {
/*padding: 29px 20px 30px 10px;*/
padding: 10px 10px 15px 10px;
clear: both;
}
.mcd-menu li a.search i {
margin: 0;
display: inline-block;
font-size: 18px;
}
.mcd-menu li a.search input {
border: 1px solid #EEE;
padding: 10px;
background: #FFF;
outline: none;
color: #777;
/* == */
width:170px;
float:left;
/* == */
}
.mcd-menu li a.search button {
border: 1px solid #e67e22;
/*padding: 10px;*/
background: #e67e22;
outline: none;
color: #FFF;
margin-left: -4px;
/* == */
float:left;
padding: 10px 10px 11px 10px;
/* == */
}
.mcd-menu li a.search input:focus {
border: 1px solid #e67e22;
}
.search-mobile {
display:none !important;
background:#e67e22;
border-left:1px solid #e67e22;
border-radius:0 3px 3px 0;
}
.search-mobile i {
color:#FFF;
margin:0 !important;
}
@media only screen and (min-width: 960px) and (max-width: 1199px) {
.mcd-menu {
margin-left:10px;
}
}
@media only screen and (min-width: 768px) and (max-width: 959px) {
.mcd-menu {
width: 200px;
}
.mcd-menu li a {
height:30px;
}
.mcd-menu li a i {
font-size: 22px;
}
.mcd-menu li a strong {
font-size: 12px;
}
.mcd-menu li a small {
font-size: 10px;
}
.mcd-menu li a.search input {
width: 120px;
font-size: 12px;
}
.mcd-menu li a.search buton{
padding: 8px 10px 9px 10px;
}
.mcd-menu li > ul {
min-width:180px;
}
.mcd-menu li:hover > ul {
min-width:180px;
left:200px;
}
.mcd-menu li ul li > ul, .mcd-menu li ul li ul li > ul {
min-width:150px;
}
.mcd-menu li ul li:hover > ul {
left:180px;
min-width:150px;
}
.mcd-menu li ul li ul li:hover > ul {
left:150px;
min-width:150px;
}
.mcd-menu li ul a {
font-size:12px;
}
.mcd-menu li ul a i {
font-size:14px;
}
}
@media only screen and (min-width: 480px) and (max-width: 767px) {
.mcd-menu {
width: 50px;
}
.mcd-menu li a {
position: relative;
padding: 12px 16px;
height:20px;
}
.mcd-menu li a small {
display: none;
}
.mcd-menu li a strong {
display: none;
}
.mcd-menu li a:hover strong,.mcd-menu li a.active strong {
display:block;
font-size:10px;
padding:3px 0;
position:absolute;
bottom:0px;
left:0;
background:#e67e22;
color:#FFF;
min-width:100%;
text-transform:lowercase;
font-weight:normal;
text-align:center;
}
.mcd-menu li .search {
display: none;
}
.mcd-menu li > ul {
min-width:180px;
left:70px;
}
.mcd-menu li:hover > ul {
min-width:180px;
left:50px;
}
.mcd-menu li ul li > ul, .mcd-menu li ul li ul li > ul {
min-width:150px;
}
.mcd-menu li ul li:hover > ul {
left:180px;
min-width:150px;
}
.mcd-menu li ul li ul li > ul {
left:35px;
top: 45px;
border:0;
border-top:4px solid #e67e22;
}
.mcd-menu li ul li ul li > ul:before {
left:30px;
top: -9px;
border:0;
border-bottom:5px solid #e67e22;
border-left:5px solid transparent;
border-right:5px solid transparent;
}
.mcd-menu li ul li ul li:hover > ul {
left:30px;
min-width:150px;
top: 35px;
}
.mcd-menu li ul a {
font-size:12px;
}
.mcd-menu li ul a i {
font-size:14px;
}
}
@media only screen and (max-width: 479px) {
.mcd-menu {
width: 50px;
}
.mcd-menu li a {
position: relative;
padding: 12px 16px;
height:20px;
}
.mcd-menu li a small {
display: none;
}
.mcd-menu li a strong {
display: none;
}
.mcd-menu li a:hover strong,.mcd-menu li a.active strong {
display:block;
font-size:10px;
padding:3px 0;
position:absolute;
bottom:0px;
left:0;
background:#e67e22;
color:#FFF;
min-width:100%;
text-transform:lowercase;
font-weight:normal;
text-align:center;
}
.mcd-menu li .search {
display: none;
}
.mcd-menu li > ul {
min-width:180px;
left:70px;
}
.mcd-menu li:hover > ul {
min-width:180px;
left:50px;
}
.mcd-menu li ul li > ul, .mcd-menu li ul li ul li > ul {
min-width:150px;
}
.mcd-menu li ul li:hover > ul {
left:180px;
min-width:150px;
}
.mcd-menu li ul li ul li > ul {
left:35px;
top: 45px;
border:0;
border-top:4px solid #e67e22;
}
.mcd-menu li ul li ul li > ul:before {
left:30px;
top: -9px;
border:0;
border-bottom:5px solid #e67e22;
border-left:5px solid transparent;
border-right:5px solid transparent;
}
.mcd-menu li ul li ul li:hover > ul {
left:30px;
min-width:150px;
top: 35px;
}
.mcd-menu li ul a {
font-size:12px;
}
.mcd-menu li ul a i {
font-size:14px;
}
}
DB.java
package szysl;
import java.sql.*;
public class DB {
private static final String driverStr = "com.microsoft.sqlserver.jdbc.SQLServerDriver";
private static final String connStr = "jdbc:sqlserver://localhost:1433; DatabaseName=calculate";
private static final String dbusername = "sa";
private static final String dbpassword = "741099";
private static Connection conn = null;
public static Connection getConn() {
return conn;
}
static{
try{
Class.forName(driverStr);
conn = DriverManager.getConnection(connStr, dbusername, dbpassword);
} catch (ClassNotFoundException e){
e.printStackTrace();
} catch (SQLException e){
e.printStackTrace();
}
}
public void closeCon(Connection con) {
if(conn!=null){
try {
conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
public static void main(String[] args) {
try {
DB.getConn();
System.out.println("数据库连接成功");
} catch (Exception e) {
e.printStackTrace();
}
}
}
Szys.java
package szysl;
import java.sql.*;
public class Szys {
public Szys(){}
public int random(int w,int v)
{
int value=w + (int) ( Math.random() * v );
return value;
}
public void jisuan1(int n,int value1,int value2,int ys,int i)
{
String ys1;
String result[] =new String[n];
String output[] =new String[n];
if(ys==1) {ys1="+";result[i]=value1+value2+"";}
else if(ys==2) {ys1="-";result[i]=(value1-value2)+"";}
else if(ys==3) {ys1="*";result[i]=(value1*value2)+"";}
else {ys1="/";result[i]=yuefen(value1,value2);}
output[i]= value1 + " "+ys1 +" "+ value2+"=";
//连接数据库存入数据
DB db=new DB();
String sql = "insert into szys (num,question,answer) values (?,?,?)";
PreparedStatement pstmt = null;
try {
pstmt = db.getConn().prepareStatement(sql);
pstmt.setInt(1,i+1);
pstmt.setString(2,output[i]);
pstmt.setString(3,result[i]);
pstmt.executeUpdate();
} catch (SQLException e) {
e.printStackTrace();
}
}
public void jisuan2(int n,int value1,int value2,int value3,int value4,int ys,int i)
{
String ys1;
String result[] =new String[n];
String output[] =new String[n];
if(ys==1) {ys1="+";result[i]=yuefen(((value1*value4)+(value2*value3)),value2*value4)+"";}
else if(ys==2) {ys1="-";result[i]=yuefen(((value1*value4)-(value2*value3)),value2*value4)+"";}
else if(ys==3) {ys1="*";result[i]=yuefen((value1*value3),(value2*value4))+"";}
else {ys1="/";result[i]=yuefen((value1*value4),(value2*value3))+"";}
output[i]= yuefen(value1,value2)+" "+ys1+" "+yuefen(value3,value4)+"=";
//连接数据库存入数据
DB db=new DB();
String sql = "insert into szys (num,question,answer) values (?,?,?)";
PreparedStatement pstmt = null;
try {
pstmt = db.getConn().prepareStatement(sql);
pstmt.setInt(1,i+1);
pstmt.setString(2, output[i]);
pstmt.setString(3, result[i]);
pstmt.executeUpdate();
} catch (SQLException e) {
e.printStackTrace();
}
}
public String yuefen(int a1,int a2)
{
int min=a1<a2?a1:a2;
int yueshu=1;
for(int i=min;i>=1;i--)
{
if(a1%i==0 && a2%i==0)
{
yueshu=i;
break;
}
}
a1/=yueshu;
a2/=yueshu;
return(a1+"/"+a2);
}
public void zheng(int y,int n,int n3,int n4,int n7)
{
int value1,value2;
int ys;
for ( int i = 0; i < n; i++ )
{
value1 = random(1,y);
value2 = random(1,y);
if(n3==1&&n4==1&&n7==1)//加减有负数,有乘除法,有余数
{
ys = random(1,4);
if(value1%value2!=0)
jisuan1(n,value1,value2,ys,i);
else i--;
}
else if(n3==1&&n4==1&&n7==2)//加减有负数,有乘除法,无余数
{
ys = random(1,4);
if(value1>=value2&&value1%value2==0)
jisuan1(n,value1,value2,ys,i);
else i--;
}
else if(n3==1&&n4==2)//无乘除法
{
ys = random(1,2);
jisuan1(n,value1,value2,ys,i);
}
else if(n3==2)//加减无负数
{
if(value1>=value2&&n4==1&&n7==1)//有乘除法,有余数
{
ys = random(1,4);
if(value1%value2!=0)
jisuan1(n,value1,value2,ys,i);
else i--;
}
else if(value1>=value2&&n4==1&&n7==2)//有乘除法,无余数
{
ys = random(1,4);
if(value1%value2==0)
jisuan1(n,value1,value2,ys,i);
else i--;
}
else if(value1>=value2&&n4==2)//无乘除法
{
ys = random(1,2);
jisuan1(n,value1,value2,ys,i);
}
else if(value1<value2) i--;
}
else
{
System.out.println("输入错误!");
break;
}
}
}
public void zhenfs(int y,int n,int n3,int n4,int n7)
{
int value1,value2,value3,value4,ys;
for ( int i = 0; i < n; i++ )
{
value1 = random(1,y);
value2 = random(1,y);
value3 = random(1,y);
value4 = random(1,y);
if(value1<value2&&value3<value4)
{
if(n3==1&&n4==1&&n7==1)//加减有负数,有乘除法,有余数
{
ys = random(1,4);
if(((double)value1/value2)>=((double)value3/value4)&&((double)value1/value2)%((double)value3/value4)!=0)
jisuan2(n,value1,value2,value3,value4,ys,i);
else i--;
}
else if(n3==1&&n4==1&&n7==2)//加减有负数,有乘除法,无余数
{
ys = random(1,4);
if(((double)value1/value2)>=((double)value3/value4)&&((double)value1/value2)%((double)value3/value4)==0)
jisuan2(n,value1,value2,value3,value4,ys,i);
else i--;
}
else if(n3==1&&n4==2)//无乘除法
{
ys = random(1,2);
jisuan2(n,value1,value2,value3,value4,ys,i);
}
else if(n3==2)//加减无负数
{
if(((double)value1/value2)>=((double)value3/value4)&&n4==1&&n7==1)//有乘除法,有余数
{
ys = random(1,4);
if(((double)value1/value2)%((double)value3/value4)!=0)
jisuan2(n,value1,value2,value3,value4,ys,i);
else i--;
}
else if(((double)value1/value2)>=((double)value3/value4)&&n4==1&&n7==2)//有乘除法,无余数
{
ys = random(1,4);
if(((double)value1/value2)%((double)value3/value4)==0)
jisuan2(n,value1,value2,value3,value4,ys,i);
else i--;
}
else if(((double)value1/value2)>=((double)value3/value4)&&n4==2)//无乘除法
{
ys = random(1,2);
jisuan2(n,value1,value2,value3,value4,ys,i);
}
else if(((double)value1/value2)<((double)value3/value4)) i--;
}
else
{
System.out.println("输入错误!");
break;
}
}
else i--;
}
}
}
结果截图:







原文:http://www.cnblogs.com/chen160340/p/6696629.html