Javaweb——四则运算---18.11.01

---恢复内容开始---

test.jsp

<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<!DOCTYPE html>
<html>
<head>
<body background="C:UsersaDesktop/222.jpg">
<meta charset="utf-8">
<%
   int x = Integer.parseInt(request.getParameter("number"));
   String values[] = new String[x];
   int sum[]=new int[x];
   int i;
   for(i=0;i<x;i++)
   {
  int randNumber1 = (int)Math.floor(Math.random()*100+1);

  int randNumber2 = (int)Math.floor(Math.random()*100+1);

  int fuhao=(int)Math.floor(Math.random()*4+1);
  if(fuhao==1){
   values[i]=randNumber1+"+"+randNumber2+"=";
   sum[i]=randNumber1+randNumber2;
  }
  if(fuhao==2){
   if(randNumber1>randNumber2){
   values[i]=randNumber1+"-"+randNumber2+"=";
   sum[i]=randNumber1-randNumber2;
   }
   else{
    values[i]=randNumber2+"-"+randNumber1+"=";
    sum[i]=randNumber2-randNumber1;
   }
  }
  if(fuhao==3){
   values[i]=randNumber1+"*"+randNumber2+"=";
   sum[i]=randNumber1*randNumber2;
  }
  if(fuhao==4){
   if(randNumber1<randNumber2)
   {
    int a=0;
    a=randNumber1;
    randNumber1=randNumber2;
    randNumber2=a;
   }
   if(randNumber2==0){
    randNumber2=1;
    values[i]=randNumber1+"/"+randNumber2+"=";
    sum[i]=randNumber1/randNumber2;
   }
   else{
       values[i]=randNumber1+"/"+randNumber2+"=";
       sum[i]=randNumber1/randNumber2;
   }
  }
   }
%>
<title>Insert title here</title>
</head>
<body>
<form action="NewFile1.jsp">
<table>
  <tr>
   <td>题目</td>
   <td>答案</td>
  </tr>
  <%
    for(int j=0;j<x;j++){
    %>
  <tr>
   <td><%=values[j] %></td>
   <td><input type="text" name="results" /></td>
   <td><input type="hidden" name="answer" value=<%=sum[j] %>></td>
  </tr>

  <%
    }
    %>
    <tr>
    <td>
    <input type="submit" value="提交"/>
    </td>
    </tr>
</table>
</form>
</body>
</html>

---恢复内容结束---

NewFile.jsp

<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Insert title here</title>
</head>
<body background="C:UsersaDesktop/111.jpg">
<h1>网页版四则运算自动出题系统</h1>
<form action="test.jsp" method="get">
<form action="NewFile1.jsp" method="get">
<table>
<tr>
    <td>题数</td>
    <td>
    <input type="text" name="number">
    <input type="submit" value="开始答题"/></td>
</tr>
</table>
</form>

</body>
</html>

NewFile1.jsp

<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Insert title here</title>
</head>
<body background="C:UsersaDesktop/333.jpg">
<%
String results[] = request.getParameterValues("results");
String answer[] = request.getParameterValues("answer");
int tr = 0;
int fa = 0;
for(int i=0;i<results.length;i++){
if(results[i].equals(answer[i])){
  tr++;%>
  <p>第<%=i+1 %>题正确</p>
  <%
}else{
  fa++;%>
  <p>第<%=i+1 %>题错误,输入为<%=results[i] %>,正确答案为<%=answer[i] %></p>
  <%
}
}
%>
<h2>
   你答对了<%=tr %>题，答错了<%=fa %>题
</h2>

</body>
</html>

jieshu.jsp

总的来说，这次web还是比较简单后，一开始做的是很没有头绪，这一篇代码那时候也还是抄别人的看着，然后一点一点再把别人的这个学下来，有不懂的就问问，也就会了。现在再看觉得还是挺简单的。嗯