軟工概論第二周個人項目四則運算二（改進）
阿新 • • 發佈：2017-12-06
添加 setattr login session i++ idt new 數組 w3c
設計思想：
設計思想：輸出表達式的個數n，利用隨機數方法產生小於100的隨機數，用for循環產生多個隨機數，然後在進行判斷，判斷兩個證書的和小於100，差大於0，乘積小於100，能夠整除如果不符合要求則跳過本次循環，如果符合則賦值當總數到n時跳出循環，用字符串保存表達式，用double類型的數組保存正確結果，然後循環輸出表達式，輸入結果後跳轉到判斷結果界面，循環判斷結果，如果相等flag[]為1，不等為0，最後給出正確的題目數量和錯誤的數量和未作的數量，在循環輸出不正確的那些題目
改進的地方：表達式數量輸入為空或者為0的優化，結果輸入時意外添加空格的優化，最後輸出不正確的題目,在線答題時時間限制，更加人性化
//Suanshijava package p1; public class Suanshi { final int MAX=1000; double[] e= new double[MAX]; String[] f=new String[MAX]; private int num; public int getNum() { return num; } public void setNum(int num) { this.num = num; } public Suanshi(){}public Suanshi(int n) { creatSuanshi(n); this.num=n; } public void creatSuanshi(int n) { int a; int c; int d; for(int i=0;i<n;i++) { a=(int)(Math.random()*100+1); d=(int)(Math.random()*4+1); c=(int)(Math.random()*100+1); switch(d){ case 1: if(a+c>100) { i--; break; } e[i]=a+c; f[i]=""+a+"+"+c; break; case 2: if(a-c<0) { i--; break; } e[i]=a-c; f[i]=""+a+"-"+c; break; case 3: while(a*c>100) { a=(int)(Math.random()*100+1); c=(int)(Math.random()*100+1); } e[i]=a*c; f[i]=""+a+"*"+c; break; case 4: e[i]= (int)(Math.random()*10+1); c= (int)(Math.random()*10+1); a=(int)(c*e[i]); f[i]=""+a+"/"+c; if((c==0)&&(a>100)) { i--; break; } break; } } } public String getSuanshi(int i) { return f[i]; } public double getDaan(int i) { return e[i]; } }
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>輸入數量頁面</title> </head> <body background="C:\Users\DELL\Desktop\photo1.jpg"> <br><br><br><br><br><br><br> <% String loginError = (String)request.getAttribute("loginError"); if(loginError == null) { loginError = ""; } %> <form action="add.jsp" method="get"> <center><h1>輸入頁面</h1> 數量：<input type="text" name="number"/><%=loginError %><br><br> 時間一共為<font color="red">100</font>秒<br><br> <input type="submit" value="開始答題" /></center> </form> </body> </html>
<%@page import="p1.Suanshi"%> <%@ 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> <body onLoad="TimeClose();"> <script language="javascript"> var cTime=100; function TimeClose() { window.setTimeout(‘TimeClose()‘,1000); if(cTime<=0) CloseWindow_Click(); this.ShowTime.innerHTML="倒計時"+cTime+"秒後結束答題"; cTime--; } function CloseWindow_Click() { window.close(); } </script> <% //獲取客戶端傳遞過來的參數 if("".equals(request.getParameter("number").trim())) { request.setAttribute("loginError","不能為空"); %> <jsp:forward page="index.jsp"></jsp:forward> <% } else { if(Integer.parseInt(request.getParameter("number").trim())==0) { request.setAttribute("loginError","不能為0"); %> <jsp:forward page="index.jsp"></jsp:forward> <% } } int number=Integer.parseInt(request.getParameter("number").trim()); Suanshi suanshi=new Suanshi(number); session.setAttribute("suanshi", suanshi); %> <center><h1>答題</h1></center> <div align="right" id="ShowTime">倒計時100秒後結束答題</div> <hr> <form action="judge.jsp"> <table align="center" border="1" width="450"> <tr> <td align="center">題號</td> <td align="center">表達式</td> <td align="center">你的答案</td> </tr> <% for(int i=0;i<number;i++) { %> <tr> <td align="center">第<%=i+1%>題</td> <td align="center"><%=suanshi.getSuanshi(i)%>=</td> <td><input type="text" name="daan<%=i%>"></td> </tr> <% } %> </table><br> <center><input type="submit" value="提交"></center> </form> </body> </html>
<%@page import="p1.Suanshi"%> <%@ 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>Insert title here</title> </head> <% Suanshi suanshi = (Suanshi)session.getAttribute("suanshi") ; int dui=0; int cuo=0; int meizuo=0; int[] flag=new int[suanshi.getNum()]; String daan[]=new String[suanshi.getNum()]; double daan1[]=new double[suanshi.getNum()]; for(int i=0;i<suanshi.getNum();i++) { daan[i]=request.getParameter("daan"+i).trim(); if((daan[i]==null)||("".equals(daan[i].trim()))) { flag[i]=0; meizuo++; } else { daan1[i] =Double.parseDouble(daan[i]); if(Math.abs(daan1[i]-suanshi.getDaan(i))<0.01) { flag[i]=1; dui++; } else { flag[i]=0; cuo++; } } } %> <body> <hr size="1" color="black"> <center> <h1>測試成績</h1> <hr size="1" color="black"> 一共：<%=suanshi.getNum()%>道<br> 沒做的：<%=meizuo %>道<br> 做錯的：<%=cuo %>道<br> 作對的：<%=dui %>道<br></center> <hr width="800" color="red"> <center><h3>錯誤題目</h3></center> <hr width="800" color="red"> <table align="center" border="1" width="450"> <tr> <td align="center">題號</td> <td align="center">表達式</td> <td align="center">正確答案</td> <td align="center">你的結果</td> </tr> <% for(int i=0;i<suanshi.getNum();i++) if(flag[i]==0) { %> <tr> <td align="center">第<%=i+1%>題</td> <td align="center"><%=suanshi.getSuanshi(i)%>=</td> <td align="center"><%=suanshi.getDaan(i)%></td> <td align="center"><%=daan[i]%></td> </tr> <% } %> </table> </body> </html>
軟工概論第二周個人項目四則運算二（改進）