四则运算完整网页版，链接数据库的所有程序。
功能如下：
1.可以进行基础的四则运算
2.可以定制题目的数量和出题的范围，比如控制计算在10以内的四则运算
3.减法没有负数，使用if条件功能控制
4.除法当除不尽时用真分数或带分数表示
5.可以实现真分数的计算
6.可以实现括号的计算
7.可以实现有余数的计算
8.可以在线做题，判断正确与错误
9.可以链接数据库，实现不重复出题
10.将题目和答案以及用户输入的答案写进数据。
就是将上一次在eclipse中编好的类直接调用，在网页中使用。
代码如下：
主界面的代码：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <title>主界面</title> <style type="text/css"> body { background-image: url(image/17.jpg); } </style> </head> <body> <div style="text-align: center; font-family: 微软雅黑; font-size: 50px; color: #C03; "><strong><em>四则运算</em></strong></div> <div style="text-align: center; font-family: 微软雅黑; font-size: 15px; color: #C03; "><strong><em>Welcome To User The System</em></strong></div> <br/> <div style="text-align: center; font-family: 微软雅黑; font-size: 20px;color: #C03;"><strong><em>请选择出题的范围</em></strong></div><br /> <form name="form1" method="post" action="panduan.jsp"> <blockquote> <blockquote> <blockquote> <blockquote> <blockquote> <blockquote> <blockquote> <blockquote> <blockquote> <blockquote> <div style="color: #C03"> <p> <strong>A:整数的四则计算<br /> B:真分数的四则计算<br /> C:整数与真分数的混合四则运算<br /> D:有余数的除法<br /> E:有括号的四则运算<br /> </strong> </p> </div> </blockquote> </blockquote> </blockquote> </blockquote> </blockquote> </blockquote> </blockquote> </blockquote> </blockquote> </blockquote> <div style="text-align: center;color: #C03 "> <strong>请选择：</strong><input name="xuanze" type="text"/> <input name="" type="submit" value="提交" /> <input name="" type="reset" value="重置" /> </div> </form> </body> </html>
判断界面：
<%@ 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> <style type="text/css"> body { background-image: url(image/7.jpg); } </style> </head> <body> <% String panduan=request.getParameter("xuanze"); if(panduan.equals("A")) { %> <form id="form2" name="form2" method="post" action="chaundi.jsp"> <div style="text-align:center;color:#F09"> <br> <br> <br> <br> <br> <br> 请输入出题的个数：<input name="geshu" type="text" value=""/><br /><br/> 请选择出题的范围：<input name="fanwei" type="text" value=""/><br/><br/> <input name="" type="submit" value="提交" /> </div> </form> <% } else if(panduan.equals("B")) { %> <br> <br> <br> <br> <br> <br> <form id="form3" name="form4" method="post" action="fenchuandi.jsp"> <div style="text-align:center;color:#F09"> 请输入出题的个数：<input name="geshu" type="text" value=""/><br /><br/> 请选择出题的范围：<input name="fanwei" type="text" value=""/><br/><br/> <input name="" type="submit" value="提交" /> </div> </form> <% } else if(panduan.equals("C")) { %> <form id="form2" name="form2" method="post" action="fenzhengchuangdi.jsp"> <div style="text-align:center;color:#F09"> <br> <br> <br> <br> <br> <br> 请输入出题的个数：<input name="geshu" type="text" value=""/><br /><br/> 请选择出题的范围：<input name="fanwei" type="text" value=""/><br/><br/> <input name="" type="submit" value="提交" /> </div> </form> <% } else if(panduan.equals("D")) { %> <form id="form2" name="form2" method="post" action="yushuchuangdi.jsp"> <div style="text-align:center;color:#F09"> <br> <br> <br> <br> <br> <br> 请输入出题的个数：<input name="geshu" type="text" value=""/><br /><br/> 请选择出题的范围：<input name="fanwei" type="text" value=""/><br/><br/> <input name="" type="submit" value="提交" /> </div> </form> <% } else if(panduan.equals("E")) { %> <form id="form2" name="form2" method="post" action="kuohaochuangdi.jsp"> <div style="text-align:center;color:#F09"> <br> <br> <br> <br> <br> <br> 请输入出题的个数：<input name="geshu" type="text" value=""/><br /><br/> 请选择出题的范围：<input name="fanwei" type="text" value=""/><br/><br/> <input name="" type="submit" value="提交" /> </div> </form> <% } else { %> <script type="text/javascript"> alert("输入错误，请点击确定重新输入！！！"); </script> <% response.setHeader("refresh","0;url = xuanze.html"); } %> </body> </html>
整数界面：
error界面：
<%@ 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> <style type="text/css"> body { background-image: url(image/7.jpg); } </style> </head> <body> <form id="form2" name="form2" method="post" action="chaundi.jsp"> <div style="text-align:center;color:#F09"> <br> <br> <br> <br> <br> <br> 请输入出题的个数：<input name="geshu" type="text" value=""/><br /><br/> 请选择出题的范围：<input name="fanwei" type="text" value=""/><br/><br/> <input name="" type="submit" value="提交" /> </div> </form> </body> </html>
传递参数的界面：
<%@ 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> <style type="text/css"> body { background-image: url(image/19.jpg); } </style> </head> <body> <% try { int tishu=Integer.parseInt(request.getParameter("geshu")); int fanwei=Integer.parseInt(request.getParameter("fanwei")); session.setAttribute("tishu", tishu); session.setAttribute("fanwei", fanwei); response.setHeader("refresh","0;url = zhengshu.jsp"); } catch(Exception e) { %> <script type="text/javascript"> alert("输入错误，点击确定返回重新输入！！！") </script> <% response.setHeader("refresh","0;url = error.jsp"); } %> </body> </html>
显示的界面：
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" import="java.util.Random" import="java.sql.Connection" import="java.sql.DriverManager"%> <!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> <style type="text/css"> body { background-image: url(image/4.jpg); } </style> </head> <body> <%! class Suan1//生成整数计算的类 { public int x,y,c;//定义两个变量，还有一个符号变量 public Random random=new Random();//定义随机数 String m;//生成的计算式储存咋m里面 int fanwei; public String shengcheng(int fanwei1)//自动生成数的函数 { fanwei=fanwei1; c=random.nextInt(4);//生成符号 String fuhao; x=random.nextInt(fanwei);//生成100以内的自然数 y=random.nextInt(fanwei); if(c==0)//0是加法 { fuhao="+"; m=String.valueOf(x)+fuhao+String.valueOf(y); } else if(c==1)//1是减法 { fuhao="-"; if(x>=y) { m=String.valueOf(x)+fuhao+String.valueOf(y); } else { m=String.valueOf(y)+fuhao+String.valueOf(x); } } else if(c==2) { fuhao="*"; m=String.valueOf(x)+fuhao+String.valueOf(y); } else { fuhao="/"; for(int i=0;;i++) { if(y==0) { y=random.nextInt(fanwei); } else { break; } } m=String.valueOf(x)+fuhao+String.valueOf(y); } return m; } public String shuchu()//定义输出函数 { if(c==0) { return (String.valueOf(x+y));//并且返回计算的结果 } else if(c==1) { if(x>=y)//将较大的数放在前面，不能出现负数 { return (String.valueOf(x-y)); } else { return (String.valueOf(y-x)); } } else if(c==2) { return (String.valueOf(x*y)); } else { if(x%y==0) { return (String.valueOf(x/y)); } else { if(x>y) { int shang=x/y; int yushu=x-y*shang; return (String.valueOf(shang)+"‘"+String.valueOf(yushu)+"/"+String.valueOf(y)); } else { return (String.valueOf(x)+"/"+String.valueOf(y)); } } } } public int fanhuic() { return c; } public int jianyan(String a[],int s)//检验是否有重复的式子，如果有返回0，没有就返回1 { int flag=1; for(int i=0;i<s;i++) { if(m.equals(a[i]))//数组a里面是生成的式子 { flag=0; break; } } return flag; } } int tishu; int fanwei; int m=0; String shuju[]=new String[10000]; int flag=0; Suan1 a=new Suan1(); String daan,daan1; String zhengque="",cuowu=""; %> <% tishu=Integer.parseInt((String.valueOf(session.getAttribute("tishu")))); fanwei=Integer.parseInt((String.valueOf(session.getAttribute("fanwei")))); session.setAttribute("tishu", tishu); if(m<tishu)//生成30个计算式 { shuju[m]=a.shengcheng(fanwei);//将生成的计算式储存咋数组里面 flag=a.jianyan(shuju, m);//返回是否有重复 if(flag==1)//如果没有就是1 { if(m+1==tishu) {daan=a.shuchu(); session.setAttribute("shuju", shuju[m]); session.setAttribute("daan", daan); session.setAttribute("m", m); %> <form id="form2" name="form2" method="post" action="huoqu.jsp"> <div style="text-align:center"> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <%out.print(m+1+"."+shuju[m]+"="); m=0;%> <br> <br> <br> <br> 请输入答案：<input name="daan1" type="text" value=""/><br /><br/> <input name="" type="submit" value="提交" /> </div> </form> <% } else { daan=a.shuchu(); session.setAttribute("shuju", shuju[m]); session.setAttribute("daan", daan); session.setAttribute("m", m); %> <form id="form2" name="form2" method="post" action="huoqu.jsp"> <div style="text-align:center"> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <%out.print(m+1+"."+shuju[m]+"=");%> <br> <br> <br> <br> 请输入答案：<input name="daan1" type="text" value=""/><br /><br/> <input name="" type="submit" value="下一个" /> </div> </form> <% m++; flag=0; } } else { response.setHeader("refresh","1;url = zhengshu.jsp"); } } %> </body> </html>
写入数据库的界面：
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" import="java.sql.Connection" import="java.sql.DriverManager"%> <!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> <style type="text/css"> body { background-image: url(image/18.jpg); } </style> </head> <body> <%! int tishu1; String error="",zhengque=""; %> <% try { Connection con = null; //定义一个MYSQL链接对象 Class.forName("com.mysql.jdbc.Driver").newInstance(); //MYSQL驱动 con = DriverManager.getConnection("jdbc:mysql://localhost:3306/test", "root", "20153246"); //链接本地MYSQL java.sql.Statement stmt; //创建声明 stmt = con.createStatement(); String shuju=String.valueOf(session.getAttribute("shuju")); String daan=String.valueOf(session.getAttribute("daan")); int m=Integer.parseInt(String.valueOf(session.getAttribute("m"))); tishu1=Integer.parseInt((String.valueOf(session.getAttribute("tishu")))); String daan1=request.getParameter("daan1"); String sql="INSERT INTO 整数的四则计算 (shizi,result,userresult) VALUES ('"+shuju+" = "+"','"+daan+"','"+daan1+"')"; stmt.executeUpdate(sql); if(daan.equals(daan1)) { zhengque=zhengque+String.valueOf(m+1)+","; } else { error=error+String.valueOf(m+1)+","; } if(m+1==tishu1) { sql="INSERT INTO Grade (zhengque,cuowu) VALUES ('"+zhengque+"','"+error+"')"; stmt.executeUpdate(sql); %> <form id="form2" name="form2" method="post" action="xuanze.html"> <div style="text-align:center;color:#F00"> <strong> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <% out.print("正确的题目是："+zhengque+"<br>"+"错误的题目是："+error+"<br>"+"点击确定返回主界面"); zhengque=""; error=""; %> <input name="" type="submit" value="确定" /> </strong> </div> </form> <% } else { response.setHeader("refresh","0;url = zhengshu.jsp"); } } catch (Exception e) { System.out.print("MYSQL ERROR:" + e.getMessage()); } %> </body> </html>
真分数的界面：
error界面：
<%@ 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> <style type="text/css"> body { background-image: url(image/7.jpg); } </style> </head> <body> <form id="form2" name="form2" method="post" action="fenchuandi.jsp"> <div style="text-align:center;color:#F09"> <br> <br> <br> <br> <br> <br> 请输入出题的个数：<input name="geshu" type="text" value=""/><br /><br/> 请选择出题的范围：<input name="fanwei" type="text" value=""/><br/><br/> <input name="" type="submit" value="提交" /> </div> </form> </body> </html>
传递参数的界面：
<%@ 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> <style type="text/css"> body { background-image: url(image/19.jpg); } </style> </head> <body> <% try { int tishu=Integer.parseInt(request.getParameter("geshu")); int fanwei=Integer.parseInt(request.getParameter("fanwei")); session.setAttribute("tishu", tishu); session.setAttribute("fanwei", fanwei); response.setHeader("refresh","0;url = fenshu.jsp"); } catch(Exception e) { %> <script type="text/javascript"> alert("输入错误，点击确定返回重新输入！！！") </script> <% response.setHeader("refresh","0;url = fenerror.jsp"); } %> </body> </html>
显示的界面：
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" import="java.util.Random"%> <!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> <style type="text/css"> body { background-image: url(image/4.jpg); } </style> </head> <body> <%! class Suan2//真分数的运算类 { public int m,n,x,y,c;//定义4个变量，还有一个符号变量 public Random random=new Random(); String s;//生成的计算式储存咋m里面 int fanwei; public void shengcheng(int fanwei1) { fanwei=fanwei1; c=random.nextInt(4); x=random.nextInt(fanwei); y=random.nextInt(fanwei); m=random.nextInt(fanwei); n=random.nextInt(fanwei);//生成4个随机数在50以内，赋给x,y,m,n String fuhao; for(int i=0;;i++) { if(x==0)//不能生成0 { x=random.nextInt(fanwei); } else { break; } } for(int i=0;;i++) { if(y==0||y==x)//不能生成0 { y=random.nextInt(fanwei); } else { break; } } for(int i=0;;i++) { if(m==0)//不能生成0 { m=random.nextInt(fanwei); } else { break; } } for(int i=0;;i++) { if(n==0||m==n)//不能生成0 { n=random.nextInt(fanwei); } else { break; } } if(c==0)//通整数一样，0是加法，1减法，2乘法，3除法 { fuhao="+"; } else if(c==1) { fuhao="-"; } else if(c==2) { fuhao="*"; } else { fuhao="/"; } int gongyue=Gongyue(x,y); x=x/gongyue; y=y/gongyue; gongyue=Gongyue(m,n); m=m/gongyue; n=n/gongyue; } public String shuchu()//定义输出函数 { if(c==0) { if(x>y&&m>n)//生成的分母必须大于分子，输出不同的结果 { s=y+"/"+x+" + "+n+"/"+m+"="; return jisuan(x,y,m,n,c);//返回计算结果 } else if(x>y&&m<n)//生成的分母必须大于分子，输出不同的结果 { s=y+"/"+x+" + "+m+"/"+n+"="; return jisuan(x,y,n,m,c);//返回计算结果 } else if(x<y&&m>n)//生成的分母必须大于分子，输出不同的结果 { s=x+"/"+y+" + "+n+"/"+m+"="; return jisuan(y,x,m,n,c);//返回计算结果 } else//生成的分母必须大于分子，输出不同的结果 { s=x+"/"+y+" + "+m+"/"+n+"="; return jisuan(y,x,n,m,c);//返回计算结果 } } else if(c==1) { double x1=Double.parseDouble(String.valueOf(x)); double y1=Double.parseDouble(String.valueOf(y)); double m1=Double.parseDouble(String.valueOf(m)); double n1=Double.parseDouble(String.valueOf(n)); if(x>y&&m>n)//生成的分母必须大于分子，输出不同的结果 { if((y1/x1)>(n1/m1)) { s=y+"/"+x+" - "+n+"/"+m+"="; return jisuan(x,y,m,n,c);//返回计算结果 } else { s=n+"/"+m+" - "+y+"/"+x+"="; return jisuan(m,n,x,y,c);//返回计算结果 } } else if(x>y&&m<n)//生成的分母必须大于分子，输出不同的结果 { if((y1/x1)>(m1/n1))//减数必须大于被减数 { s=y+"/"+x+" - "+m+"/"+n+"="; return jisuan(x,y,n,m,c);//返回计算结果 } else//减数必须大于被减数 { s=m+"/"+n+" - "+y+"/"+x+"="; return jisuan(n,m,x,y,c);//返回计算结果 } } else if(x<y&&m>n)//生成的分母必须大于分子，输出不同的结果 { if((x1/y1)>(n1/m1))//减数必须大于被减数 { s=x+"/"+y+" - "+n+"/"+m+"="; return jisuan(y,x,m,n,c); } else//减数必须大于被减数 { s=n+"/"+m+" - "+x+"/"+y+"="; return jisuan(m,n,y,x,c);//返回计算结果 } } else { if((x1/y1)>(m1/n1))//生成的分母必须大于分子，输出不同的结果//减数必须大于被减数 { s=x+"/"+y+" - "+m+"/"+n+"="; return jisuan(y,x,n,m,c);//返回计算结果 } else//减数必须大于被减数 { s=m+"/"+n+" - "+x+"/"+y+"="; return jisuan(n,m,y,x,c);//返回计算结果 } } } else if(c==2) { if(x>y&&m>n)//生成的分母必须大于分子，输出不同的结果 { s=y+"/"+x+" * "+n+"/"+m+"="; return jisuan(x,y,m,n,c);//返回计算结果 } else if(x>y&&m<n)//生成的分母必须大于分子，输出不同的结果 { s=y+"/"+x+" * "+m+"/"+n+"="; return jisuan(x,y,n,m,c);//返回计算结果 } else if(x<y&&m>n)//生成的分母必须大于分子，输出不同的结果 { s=x+"/"+y+" * "+n+"/"+m+"="; return jisuan(y,x,m,n,c); } else//生成的分母必须大于分子，输出不同的结果 { s=x+"/"+y+" * "+m+"/"+n+"="; return jisuan(y,x,n,m,c);//返回计算结果 } } else { if(x>y&&m>n)//生成的分母必须大于分子，输出不同的结果 { s=y+"/"+x+" / "+n+"/"+m+"="; return jisuan(x,y,m,n,c);//返回计算结果 } else if(x>y&&m<n)//生成的分母必须大于分子，输出不同的结果 { s=y+"/"+x+" / "+m+"/"+n+"="; return jisuan(x,y,n,m,c);//返回计算结果 } else if(x<y&&m>n)//生成的分母必须大于分子，输出不同的结果 { s=x+"/"+y+" / "+n+"/"+m+"="; return jisuan(y,x,m,n,c);//返回计算结果 } else//生成的分母必须大于分子，输出不同的结果 { s=x+"/"+y+" / "+m+"/"+n+"="; return jisuan(y,x,n,m,c);//返回计算结果 } } } public String jisuan(int a,int b,int c,int d,int m)//计算结果的函数 { String daan; int gongyue,gongbei; if(m==0)//加法计算的结果算法 { gongbei=Gongbei(a,c);//求两个分母的最小公倍数 int s1,s2,s3; s1=gongbei/a; s2=gongbei/c; s3=b*s1+d*s2; if(s3==gongbei) { return("1"); } else { gongyue=Gongyue(s3,gongbei); int fenzi=s3/gongyue,fenmu=gongbei/gongyue; if(fenzi<fenmu) { daan=String.valueOf(fenzi)+"/"+String.valueOf(fenmu);//通分 return daan; } else { int zhi=fenzi/fenmu; daan=String.valueOf(zhi)+"‘"+String.valueOf(fenzi-fenmu*zhi)+"/"+String.valueOf(fenmu);//通分 return daan; } } } else if(m==1)//减法计算的结果算法 { gongbei=Gongbei(a,c); int s1,s2,s3; s1=gongbei/a; s2=gongbei/c; s3=b*s1-d*s2; if(s3==gongbei) { return("1"); } else { if(s3==0) { daan=String.valueOf("0"); return daan; } else { gongyue=Gongyue(s3,gongbei); int fenzi=s3/gongyue,fenmu=gongbei/gongyue; if(fenzi<fenmu) { daan=String.valueOf(fenzi)+"/"+String.valueOf(fenmu);//通分 return daan; } else { int zhi=fenzi/fenmu; daan=String.valueOf(zhi)+"‘"+String.valueOf(fenzi-fenmu*zhi)+"/"+String.valueOf(fenmu);//通分 return daan; } } } } else if(m==2)//乘法计算的结果算法 { int s1,s2; s1=a*c; s2=b*d; if(s1==s2) { return("1"); } else { gongyue=Gongyue(s1,s2); int fenzi=s2/gongyue,fenmu=s1/gongyue; if(fenzi<fenmu) { daan=String.valueOf(fenzi)+"/"+String.valueOf(fenmu);//通分 return daan; } else { int zhi=fenzi/fenmu; daan=String.valueOf(zhi)+"‘"+String.valueOf(fenzi-fenmu*zhi)+"/"+String.valueOf(fenmu);//通分 return daan; } } } else//除法计算的结果算法 { int s1,s2; s1=a*d; s2=b*c; if(s1==s2) { return("1"); } else { gongyue=Gongyue(s1,s2); int fenzi=s2/gongyue,fenmu=s1/gongyue; if(fenzi<fenmu) { daan=String.valueOf(fenzi)+"/"+String.valueOf(fenmu);//通分 return daan; } else { int zhi=fenzi/fenmu; daan=String.valueOf(zhi)+"‘"+String.valueOf(fenzi-fenmu*zhi)+"/"+String.valueOf(fenmu);//通分 return daan; } } } } public int Gongbei(int a,int c)//求最小公倍数的函数 { int gongbei; if(a>c) { gongbei=a;//公倍数从大的开始 while(gongbei<=a*c) { if(gongbei%a==0&&gongbei%c==0) { break; } gongbei++; } } else { gongbei=c;//公倍数从大的开始 while(gongbei<=a*c) { if(gongbei%a==0&&gongbei%c==0) { break; } gongbei++; } } return gongbei; } public int Gongyue(int gongbei,int s3)//求最大公约数的函数 { int i=1,gongyue=0; if(gongbei>s3)//公约数从1到最小的数 { while(i<=s3) { if(gongbei%i==0&&s3%i==0) { gongyue=i; } i++; } return gongyue; } else { while(i<=gongbei) { if(gongbei%i==0&&s3%i==0) { gongyue=i; } i++; } return gongyue; } } public int jianyan(String a[],int l)//检验是否生成重复计算式的函数 { int flag=1; for(int i=0;i<l;i++) { if(s.equals(a[i])) { flag=0; break; } } return flag; } } Random random=new Random(); int tishu; int fanwei; int m=0; String shuju[]=new String[10000]; int flag=0; Suan2 a=new Suan2(); String daan,daan1; %> <% tishu=Integer.parseInt((String.valueOf(session.getAttribute("tishu")))); fanwei=Integer.parseInt((String.valueOf(session.getAttribute("fanwei")))); session.setAttribute("tishu", tishu); if(m<tishu) { a.shengcheng(fanwei); String f=a.shuchu(); shuju[m]=a.s; flag=a.jianyan(shuju, m);//返回是否有重复 if(flag==1)//如果没有就是1 { if(m+1==tishu) {daan=a.shuchu(); session.setAttribute("shuju", shuju[m]); session.setAttribute("daan", daan); session.setAttribute("m", m); %> <form id="form2" name="form2" method="post" action="fenshuhuoqu.jsp"> <div style="text-align:center"> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <%out.print(m+1+"."+shuju[m]+"="); m=0;%> <br> <br> <br> <br> 请输入答案：<input name="daan1" type="text" value=""/><br /><br/> <input name="" type="submit" value="提交" /> </div> </form> <% } else { daan=a.shuchu(); session.setAttribute("shuju", shuju[m]); session.setAttribute("daan", daan); session.setAttribute("m", m); %> <form id="form2" name="form2" method="post" action="fenshuhuoqu.jsp"> <div style="text-align:center"> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <%out.print(m+1+"."+shuju[m]+"=");%> <br> <br> <br> <br> 请输入答案：<input name="daan1" type="text" value=""/><br /><br/> <input name="" type="submit" value="下一个" /> </div> </form> <% m++; flag=0; } } else { response.setHeader("refresh","0;url = zhengshu.jsp"); } } %> </body> </html>
写入数据库以及判断界面：
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" import="java.sql.Connection" import="java.sql.DriverManager"%> <!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> <style type="text/css"> body { background-image: url(image/18.jpg); } </style> </head> <body> <%! int tishu1; String error="",zhengque=""; %> <% try { Connection con = null; //定义一个MYSQL链接对象 Class.forName("com.mysql.jdbc.Driver").newInstance(); //MYSQL驱动 con = DriverManager.getConnection("jdbc:mysql://localhost:3306/test", "root", "20153246"); //链接本地MYSQL java.sql.Statement stmt; //创建声明 stmt = con.createStatement(); String shuju=String.valueOf(session.getAttribute("shuju")); String daan=String.valueOf(session.getAttribute("daan")); int m=Integer.parseInt(String.valueOf(session.getAttribute("m"))); tishu1=Integer.parseInt((String.valueOf(session.getAttribute("tishu")))); String daan1=request.getParameter("daan1"); String sql="INSERT INTO 真分数的四则计算 (shizi,result,userresult) VALUES ('"+shuju+" = "+"','"+daan+"','"+daan1+"')"; stmt.executeUpdate(sql); if(daan.equals(daan1)) { zhengque=zhengque+String.valueOf(m+1)+","; } else { error=error+String.valueOf(m+1)+","; } if(m+1==tishu1) { sql="INSERT INTO Grade (zhengque,cuowu) VALUES ('"+zhengque+"','"+error+"')"; stmt.executeUpdate(sql); %> <form id="form2" name="form2" method="post" action="xuanze.html"> <div style="text-align:center;color:#F00"> <strong> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <% out.print("正确的题目是："+zhengque+"<br>"+"错误的题目是："+error+"<br>"+"点击确定返回主界面"); zhengque=""; error=""; %> <input name="" type="submit" value="确定" /> </strong> </div> </form> <% } else { response.setHeader("refresh","0;url = fenshu.jsp"); } } catch (Exception e) { System.out.print("MYSQL ERROR:" + e.getMessage()); } %> </body> </html>
真分数和整数混合的界面：
error界面：
<%@ 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> <style type="text/css"> body { background-image: url(image/7.jpg); } </style> </head> <body> <form id="form2" name="form2" method="post" action="fenzhengchuangdi.jsp"> <div style="text-align:center;color:#F09"> <br> <br> <br> <br> <br> <br> 请输入出题的个数：<input name="geshu" type="text" value=""/><br /><br/> 请选择出题的范围：<input name="fanwei" type="text" value=""/><br/><br/> <input name="" type="submit" value="提交" /> </div> </form> </body> </html>
参数传递界面：
<%@ 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> <body> <% try { int tishu=Integer.parseInt(request.getParameter("geshu")); int fanwei=Integer.parseInt(request.getParameter("fanwei")); session.setAttribute("tishu", tishu); session.setAttribute("fanwei", fanwei); response.setHeader("refresh","0;url = fenzheng.jsp"); } catch(Exception e) { %> <script type="text/javascript"> alert("输入错误，点击确定返回重新输入！！！") </script> <% response.setHeader("refresh","0;url = fenzhengerror.jsp"); } %> </body> </html>
显示界面：
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" import="java.util.Random"%> <!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> <style type="text/css"> body { background-image: url(image/4.jpg); } </style> </head> <body> <%! class Suan1//生成整数计算的类 { public int x,y,c;//定义两个变量，还有一个符号变量 public Random random=new Random();//定义随机数 String m;//生成的计算式储存咋m里面 int fanwei; public String shengcheng(int fanwei1)//自动生成数的函数 { fanwei=fanwei1; c=random.nextInt(4);//生成符号 String fuhao; x=random.nextInt(fanwei);//生成100以内的自然数 y=random.nextInt(fanwei); if(c==0)//0是加法 { fuhao="+"; m=String.valueOf(x)+fuhao+String.valueOf(y); } else if(c==1)//1是减法 { fuhao="-"; if(x>=y) { m=String.valueOf(x)+fuhao+String.valueOf(y); } else { m=String.valueOf(y)+fuhao+String.valueOf(x); } } else if(c==2) { fuhao="*"; m=String.valueOf(x)+fuhao+String.valueOf(y); } else { fuhao="/"; for(int i=0;;i++) { if(y==0) { y=random.nextInt(fanwei); } else { break; } } m=String.valueOf(x)+fuhao+String.valueOf(y); } return m; } public String shuchu()//定义输出函数 { if(c==0) { return (String.valueOf(x+y));//并且返回计算的结果 } else if(c==1) { if(x>=y)//将较大的数放在前面，不能出现负数 { return (String.valueOf(x-y)); } else { return (String.valueOf(y-x)); } } else if(c==2) { return (String.valueOf(x*y)); } else { if(x%y==0) { return (String.valueOf(x/y)); } else { if(x>y) { int shang=x/y; int yushu=x-y*shang; return (String.valueOf(shang)+"‘"+String.valueOf(yushu)+"/"+String.valueOf(y)); } else { return (String.valueOf(x)+"/"+String.valueOf(y)); } } } } public int fanhuic() { return c; } public int jianyan(String a[],int s)//检验是否有重复的式子，如果有返回0，没有就返回1 { int flag=1; for(int i=0;i<s;i++) { if(m.equals(a[i]))//数组a里面是生成的式子 { flag=0; break; } } return flag; } } class Suan2//真分数的运算类 { public int m,n,x,y,c;//定义4个变量，还有一个符号变量 public Random random=new Random(); String s;//生成的计算式储存咋m里面 int fanwei; public void shengcheng(int fanwei1) { fanwei=fanwei1; c=random.nextInt(4); x=random.nextInt(fanwei); y=random.nextInt(fanwei); m=random.nextInt(fanwei); n=random.nextInt(fanwei);//生成4个随机数在50以内，赋给x,y,m,n String fuhao; for(int i=0;;i++) { if(x==0)//不能生成0 { x=random.nextInt(fanwei); } else { break; } } for(int i=0;;i++) { if(y==0||y==x)//不能生成0 { y=random.nextInt(fanwei); } else { break; } } for(int i=0;;i++) { if(m==0)//不能生成0 { m=random.nextInt(fanwei); } else { break; } } for(int i=0;;i++) { if(n==0||m==n)//不能生成0 { n=random.nextInt(fanwei); } else { break; } } if(c==0)//通整数一样，0是加法，1减法，2乘法，3除法 { fuhao="+"; } else if(c==1) { fuhao="-"; } else if(c==2) { fuhao="*"; } else { fuhao="/"; } int gongyue=Gongyue(x,y); x=x/gongyue; y=y/gongyue; gongyue=Gongyue(m,n); m=m/gongyue; n=n/gongyue; } public String shuchu()//定义输出函数 { if(c==0) { if(x>y&&m>n)//生成的分母必须大于分子，输出不同的结果 { s=y+"/"+x+" + "+n+"/"+m+"="; return jisuan(x,y,m,n,c);//返回计算结果 } else if(x>y&&m<n)//生成的分母必须大于分子，输出不同的结果 { s=y+"/"+x+" + "+m+"/"+n+"="; return jisuan(x,y,n,m,c);//返回计算结果 } else if(x<y&&m>n)//生成的分母必须大于分子，输出不同的结果 { s=x+"/"+y+" + "+n+"/"+m+"="; return jisuan(y,x,m,n,c);//返回计算结果 } else//生成的分母必须大于分子，输出不同的结果 { s=x+"/"+y+" + "+m+"/"+n+"="; return jisuan(y,x,n,m,c);//返回计算结果 } } else if(c==1) { double x1=Double.parseDouble(String.valueOf(x)); double y1=Double.parseDouble(String.valueOf(y)); double m1=Double.parseDouble(String.valueOf(m)); double n1=Double.parseDouble(String.valueOf(n)); if(x>y&&m>n)//生成的分母必须大于分子，输出不同的结果 { if((y1/x1)>(n1/m1)) { s=y+"/"+x+" - "+n+"/"+m+"="; return jisuan(x,y,m,n,c);//返回计算结果 } else { s=n+"/"+m+" - "+y+"/"+x+"="; return jisuan(m,n,x,y,c);//返回计算结果 } } else if(x>y&&m<n)//生成的分母必须大于分子，输出不同的结果 { if((y1/x1)>(m1/n1))//减数必须大于被减数 { s=y+"/"+x+" - "+m+"/"+n+"="; return jisuan(x,y,n,m,c);//返回计算结果 } else//减数必须大于被减数 { s=m+"/"+n+" - "+y+"/"+x+"="; return jisuan(n,m,x,y,c);//返回计算结果 } } else if(x<y&&m>n)//生成的分母必须大于分子，输出不同的结果 { if((x1/y1)>(n1/m1))//减数必须大于被减数 { s=x+"/"+y+" - "+n+"/"+m+"="; return jisuan(y,x,m,n,c); } else//减数必须大于被减数 { s=n+"/"+m+" - "+x+"/"+y+"="; return jisuan(m,n,y,x,c);//返回计算结果 } } else { if((x1/y1)>(m1/n1))//生成的分母必须大于分子，输出不同的结果//减数必须大于被减数 { s=x+"/"+y+" - "+m+"/"+n+"="; return jisuan(y,x,n,m,c);//返回计算结果 } else//减数必须大于被减数 { s=m+"/"+n+" - "+x+"/"+y+"="; return jisuan(n,m,y,x,c);//返回计算结果 } } } else if(c==2) { if(x>y&&m>n)//生成的分母必须大于分子，输出不同的结果 { s=y+"/"+x+" * "+n+"/"+m+"="; return jisuan(x,y,m,n,c);//返回计算结果 } else if(x>y&&m<n)//生成的分母必须大于分子，输出不同的结果 { s=y+"/"+x+" * "+m+"/"+n+"="; return jisuan(x,y,n,m,c);//返回计算结果 } else if(x<y&&m>n)//生成的分母必须大于分子，输出不同的结果 { s=x+"/"+y+" * "+n+"/"+m+"="; return jisuan(y,x,m,n,c); } else//生成的分母必须大于分子，输出不同的结果 { s=x+"/"+y+" * "+m+"/"+n+"="; return jisuan(y,x,n,m,c);//返回计算结果 } } else { if(x>y&&m>n)//生成的分母必须大于分子，输出不同的结果 { s=y+"/"+x+" / "+n+"/"+m+"="; return jisuan(x,y,m,n,c);//返回计算结果 } else if(x>y&&m<n)//生成的分母必须大于分子，输出不同的结果 { s=y+"/"+x+" / "+m+"/"+n+"="; return jisuan(x,y,n,m,c);//返回计算结果 } else if(x<y&&m>n)//生成的分母必须大于分子，输出不同的结果 { s=x+"/"+y+" / "+n+"/"+m+"="; return jisuan(y,x,m,n,c);//返回计算结果 } else//生成的分母必须大于分子，输出不同的结果 { s=x+"/"+y+" / "+m+"/"+n+"="; return jisuan(y,x,n,m,c);//返回计算结果 } } } public String jisuan(int a,int b,int c,int d,int m)//计算结果的函数 { String daan; int gongyue,gongbei; if(m==0)//加法计算的结果算法 { gongbei=Gongbei(a,c);//求两个分母的最小公倍数 int s1,s2,s3; s1=gongbei/a; s2=gongbei/c; s3=b*s1+d*s2; if(s3==gongbei) { return("1"); } else { gongyue=Gongyue(s3,gongbei); int fenzi=s3/gongyue,fenmu=gongbei/gongyue; if(fenzi<fenmu) { daan=String.valueOf(fenzi)+"/"+String.valueOf(fenmu);//通分 return daan; } else { int zhi=fenzi/fenmu; daan=String.valueOf(zhi)+"‘"+String.valueOf(fenzi-fenmu*zhi)+"/"+String.valueOf(fenmu);//通分 return daan; } } } else if(m==1)//减法计算的结果算法 { gongbei=Gongbei(a,c); int s1,s2,s3; s1=gongbei/a; s2=gongbei/c; s3=b*s1-d*s2; if(s3==gongbei) { return("1"); } else { if(s3==0) { daan=String.valueOf("0"); return daan; } else { gongyue=Gongyue(s3,gongbei); int fenzi=s3/gongyue,fenmu=gongbei/gongyue; if(fenzi<fenmu) { daan=String.valueOf(fenzi)+"/"+String.valueOf(fenmu);//通分 return daan; } else { int zhi=fenzi/fenmu; daan=String.valueOf(zhi)+"‘"+String.valueOf(fenzi-fenmu*zhi)+"/"+String.valueOf(fenmu);//通分 return daan; } } } } else if(m==2)//乘法计算的结果算法 { int s1,s2; s1=a*c; s2=b*d; if(s1==s2) { return("1"); } else { gongyue=Gongyue(s1,s2); int fenzi=s2/gongyue,fenmu=s1/gongyue; if(fenzi<fenmu) { daan=String.valueOf(fenzi)+"/"+String.valueOf(fenmu);//通分 return daan; } else { int zhi=fenzi/fenmu; daan=String.valueOf(zhi)+"‘"+String.valueOf(fenzi-fenmu*zhi)+"/"+String.valueOf(fenmu);//通分 return daan; } } } else//除法计算的结果算法 { int s1,s2; s1=a*d; s2=b*c; if(s1==s2) { return("1"); } else { gongyue=Gongyue(s1,s2); int fenzi=s2/gongyue,fenmu=s1/gongyue; if(fenzi<fenmu) { daan=String.valueOf(fenzi)+"/"+String.valueOf(fenmu);//通分 return daan; } else { int zhi=fenzi/fenmu; daan=String.valueOf(zhi)+"‘"+String.valueOf(fenzi-fenmu*zhi)+"/"+String.valueOf(fenmu);//通分 return daan; } } } } public int Gongbei(int a,int c)//求最小公倍数的函数 { int gongbei; if(a>c) { gongbei=a;//公倍数从大的开始 while(gongbei<=a*c) { if(gongbei%a==0&&gongbei%c==0) { break; } gongbei++; } } else { gongbei=c;//公倍数从大的开始 while(gongbei<=a*c) { if(gongbei%a==0&&gongbei%c==0) { break; } gongbei++; } } return gongbei; } public int Gongyue(int gongbei,int s3)//求最大公约数的函数 { int i=1,gongyue=0; if(gongbei>s3)//公约数从1到最小的数 { while(i<=s3) { if(gongbei%i==0&&s3%i==0) { gongyue=i; } i++; } return gongyue; } else { while(i<=gongbei) { if(gongbei%i==0&&s3%i==0) { gongyue=i; } i++; } return gongyue; } } public int jianyan(String a[],int l)//检验是否生成重复计算式的函数 { int flag=1; for(int i=0;i<l;i++) { if(s.equals(a[i])) { flag=0; break; } } return flag; } } int tishu; int fanwei; int m=0; Random random=new Random(); String shuju[]=new String[10000]; int flag=0; Suan2 a=new Suan2(); Suan1 b=new Suan1(); String daan,daan1; %> <% tishu=Integer.parseInt((String.valueOf(session.getAttribute("tishu")))); fanwei=Integer.parseInt((String.valueOf(session.getAttribute("fanwei")))); session.setAttribute("tishu", tishu); if(m<tishu) { int t=random.nextInt(2); if(t==0) { a.shengcheng(fanwei); String f=a.shuchu(); shuju[m]=a.s; flag=a.jianyan(shuju, m);//返回是否有重复 if(flag==1)//如果没有就是1 { if(m+1==tishu) {daan=a.shuchu(); session.setAttribute("shuju", shuju[m]); session.setAttribute("daan", daan); session.setAttribute("m", m); %> <form id="form2" name="form2" method="post" action="fenzhenghuoqu.jsp"> <div style="text-align:center"> <%out.print(m+1+"."+shuju[m]+"="); m=0;%> <br> <br> <br> <br> <br> 请输入答案：<input name="daan1" type="text" value=""/><br /><br/> <input name="" type="submit" value="提交" /> </div> </form> <% } else { daan=a.shuchu(); session.setAttribute("shuju", shuju[m]); session.setAttribute("daan", daan); session.setAttribute("m", m); %> <form id="form2" name="form2" method="post" action="fenzhenghuoqu.jsp"> <div style="text-align:center"> <%out.print(m+1+"."+shuju[m]+"=");%> <br> <br> <br> <br> <br> 请输入答案：<input name="daan1" type="text" value=""/><br /><br/> <input name="" type="submit" value="下一个" /> </div> </form> <% m++; flag=0; } } else { response.setHeader("refresh","0;url = fenzheng.jsp"); } } else { shuju[m]=b.shengcheng(fanwei);//将生成的计算式储存咋数组里面 flag=b.jianyan(shuju, m);//返回是否有重复 if(flag==1)//如果没有就是1 { if(m+1==tishu) {daan=b.shuchu(); session.setAttribute("shuju", shuju[m]); session.setAttribute("daan", daan); session.setAttribute("m", m); %> <form id="form2" name="form2" method="post" action="fenzhenghuoqu.jsp"> <div style="text-align:center"> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <%out.print(m+1+"."+shuju[m]+"="); m=0;%> <br> <br> <br> <br> 请输入答案：<input name="daan1" type="text" value=""/><br /><br/> <input name="" type="submit" value="提交" /> </div> </form> <% } else { daan=b.shuchu(); session.setAttribute("shuju", shuju[m]); session.setAttribute("daan", daan); session.setAttribute("m", m); %> <form id="form2" name="form2" method="post" action="fenzhenghuoqu.jsp"> <div style="text-align:center"> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <%out.print(m+1+"."+shuju[m]+"=");%> <br> <br> <br> <br> 请输入答案：<input name="daan1" type="text" value=""/><br /><br/> <input name="" type="submit" value="下一个" /> </div> </form> <% m++; flag=0; } } else { response.setHeader("refresh","1;url = fenzheng.jsp"); } } } %> </body> </html>
写入数据库以及判断界面：
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" import="java.sql.Connection" import="java.sql.DriverManager"%> <!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> <style type="text/css"> body { background-image: url(image/18.jpg); } </style> </head> <body> <%! int tishu1; String error="",zhengque=""; %> <% try { Connection con = null; //定义一个MYSQL链接对象 Class.forName("com.mysql.jdbc.Driver").newInstance(); //MYSQL驱动 con = DriverManager.getConnection("jdbc:mysql://localhost:3306/test", "root", "20153246"); //链接本地MYSQL java.sql.Statement stmt; //创建声明 stmt = con.createStatement(); String shuju=String.valueOf(session.getAttribute("shuju")); String daan=String.valueOf(session.getAttribute("daan")); int m=Integer.parseInt(String.valueOf(session.getAttribute("m"))); tishu1=Integer.parseInt((String.valueOf(session.getAttribute("tishu")))); String daan1=request.getParameter("daan1"); String sql="INSERT INTO 整数与真分数的混合四则运算 (shizi,result,userresult) VALUES ('"+shuju+" = "+"','"+daan+"','"+daan1+"')"; stmt.executeUpdate(sql); if(daan.equals(daan1)) { zhengque=zhengque+String.valueOf(m+1)+","; } else { error=error+String.valueOf(m+1)+","; } if(m+1==tishu1) { sql="INSERT INTO Grade (zhengque,cuowu) VALUES ('"+zhengque+"','"+error+"')"; stmt.executeUpdate(sql); %> <form id="form2" name="form2" method="post" action="xuanze.html"> <div style="text-align:center;color:#F00"> <strong> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <% out.print("正确的题目是："+zhengque+"<br>"+"错误的题目是："+error+"<br>"+"点击确定返回主界面"); zhengque=""; error=""; %> <input name="" type="submit" value="确定" /> </strong> </div> </form> <% } else { response.setHeader("refresh","0;url = fenzheng.jsp"); } } catch (Exception e) { System.out.print("MYSQL ERROR:" + e.getMessage()); } %> </body> </html>
有括号的界面：
error界面：
<%@ 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> <style type="text/css"> body { background-image: url(image/7.jpg); } </style> </head> <body> <form id="form2" name="form2" method="post" action="kuohaochuangdi.jsp"> <div style="text-align:center;color:#F09"> <br> <br> <br> <br> <br> <br> 请输入出题的个数：<input name="geshu" type="text" value=""/><br /><br/> 请选择出题的范围：<input name="fanwei" type="text" value=""/><br/><br/> <input name="" type="submit" value="提交" /> </div> </form> </body> </html>
参数传递界面：
<%@ 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> <body> <% try { int tishu=Integer.parseInt(request.getParameter("geshu")); int fanwei=Integer.parseInt(request.getParameter("fanwei")); session.setAttribute("tishu", tishu); session.setAttribute("fanwei", fanwei); response.setHeader("refresh","0;url = kuohao.jsp"); } catch(Exception e) { %> <script type="text/javascript"> alert("输入错误，点击确定返回重新输入！！！") </script> <% response.setHeader("refresh","0;url = kuohaoerror.jsp"); } %> </body> </html>
显示界面：
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" import="java.util.Random"%> <!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> <style type="text/css"> body { background-image: url(image/4.jpg); } </style> </head> <body> <%! class Suan1//生成整数计算的类 { public int x,y,c;//定义两个变量，还有一个符号变量 public Random random=new Random();//定义随机数 String m;//生成的计算式储存咋m里面 int fanwei; public String shengcheng(int fanwei1)//自动生成数的函数 { fanwei=fanwei1; c=random.nextInt(4);//生成符号 String fuhao; x=random.nextInt(fanwei);//生成100以内的自然数 y=random.nextInt(fanwei); if(c==0)//0是加法 { fuhao="+"; m=String.valueOf(x)+fuhao+String.valueOf(y); } else if(c==1)//1是减法 { fuhao="-"; if(x>=y) { m=String.valueOf(x)+fuhao+String.valueOf(y); } else { m=String.valueOf(y)+fuhao+String.valueOf(x); } } else if(c==2) { fuhao="*"; m=String.valueOf(x)+fuhao+String.valueOf(y); } else { fuhao="/"; for(int i=0;;i++) { if(y==0) { y=random.nextInt(fanwei); } else { break; } } m=String.valueOf(x)+fuhao+String.valueOf(y); } return m; } public String shuchu()//定义输出函数 { if(c==0) { return (String.valueOf(x+y));//并且返回计算的结果 } else if(c==1) { if(x>=y)//将较大的数放在前面，不能出现负数 { return (String.valueOf(x-y)); } else { return (String.valueOf(y-x)); } } else if(c==2) { return (String.valueOf(x*y)); } else { if(x%y==0) { return (String.valueOf(x/y)); } else { if(x>y) { int shang=x/y; int yushu=x-y*shang; return (String.valueOf(shang)+"‘"+String.valueOf(yushu)+"/"+String.valueOf(y)); } else { return (String.valueOf(x)+"/"+String.valueOf(y)); } } } } public int fanhuic() { return c; } public String jisuan() { if(c==0) { return (String.valueOf(x+y));//并且返回计算的结果 } else if(c==1) { if(x>=y)//将较大的数放在前面，不能出现负数 { return (String.valueOf(x-y)); } else { return (String.valueOf(y-x)); } } else if(c==2) { return (String.valueOf(x*y)); } else { if(x%y==0) { return (String.valueOf(x/y)); } else { return (String.valueOf(x)+"/"+String.valueOf(y)); } } } public int jianyan(String a[],int s)//检验是否有重复的式子，如果有返回0，没有就返回1 { int flag=1; for(int i=0;i<s;i++) { if(m.equals(a[i]))//数组a里面是生成的式子 { flag=0; break; } } return flag; } } class Suan4 { public String m; public Random random=new Random(); public Suan1 suan=new Suan1(); public String a; public int b,z; public int c; public String a1; public int panduan; public int x,y; public String daan; public int weizhi; public double kuohao() { panduan=suan.fanhuic(); if(panduan==3) { weizhi=a.indexOf("/"); if(weizhi==-1) { z=Integer.parseInt(a); return z; } else { x=Integer.parseInt(a.substring(0, weizhi)); y=Integer.parseInt(a.substring(weizhi+1)); return (Double.parseDouble(a.substring(0, weizhi))/Double.parseDouble(a.substring(weizhi+1))); } } else { z=Integer.parseInt(a); return z; } } public String shengcheng(int fanwei) { a1=suan.shengcheng(fanwei); a=suan.jisuan(); b=random.nextInt(fanwei); int c=random.nextInt(4); int daan1; String fuhao; int kuohao=random.nextInt(2); if(c==0)//0是加法 { fuhao="+"; } else if(c==1)//1是减法 { fuhao="-"; } else { fuhao="*"; } double daxiao=kuohao(); if(kuohao==0) { if(c==1&&daxiao<b) { m=String.valueOf(b)+fuhao+"("+a1+")"; if(weizhi!=-1&&panduan==3) { if(c==0) { int x1=b*y; int x2=x+x1; if(x2%y==0) { daan=String.valueOf(x2/y); } else { if(x2>y) { int shang=x2/y; int yushu=x2-y*shang; daan=String.valueOf(shang)+"‘"+String.valueOf(yushu)+"/"+String.valueOf(y); } else { daan=String.valueOf(x2)+"/"+String.valueOf(y); } } } else if(c==1) { int x1=b*y; int x2=x1-x; if(x2%y==0) { daan=String.valueOf(x2/y); } else { if(x2>y) { int shang=x2/y; int yushu=x2-y*shang; daan=String.valueOf(shang)+"‘"+String.valueOf(yushu)+"/"+String.valueOf(y); } else { daan=String.valueOf(x2)+"/"+String.valueOf(y); } } } else if(c==2) { int x2=x*b; if(x2%y==0) { daan=String.valueOf(x2/y); } else { if(x2>y) { int shang=x2/y; int yushu=x2-y*shang; daan=String.valueOf(shang)+"‘"+String.valueOf(yushu)+"/"+String.valueOf(y); } else { daan=String.valueOf(x2)+"/"+String.valueOf(y); } } } } else { if(c==0) { daan=String.valueOf(b+z); } else if(c==1) { daan=String.valueOf(b-z); } else { daan=String.valueOf(b*z); } } } else { m="("+a1+")"+fuhao+String.valueOf(b); if(weizhi!=-1&&panduan==3) { if(c==0) { int x1=b*y; int x2=x+x1; if(x2%y==0) { daan=String.valueOf(x2/y); } else { if(x2>y) { int shang=x2/y; int yushu=x2-y*shang; daan=String.valueOf(shang)+"‘"+String.valueOf(yushu)+"/"+String.valueOf(y); } else { daan=String.valueOf(x2)+"/"+String.valueOf(y); } } } else if(c==1) { int x1=b*y; int x2=x-x1; if(x2%y==0) { daan=String.valueOf(x2/y); } else { if(x2>y) { int shang=x2/y; int yushu=x2-y*shang; daan=String.valueOf(shang)+"‘"+String.valueOf(yushu)+"/"+String.valueOf(y); } else { daan=String.valueOf(x2)+"/"+String.valueOf(y); } } } else if(c==2) { int x2=x*b; if(x2%y==0) { daan=String.valueOf(x2/y); } else { if(x2>y) { int shang=x2/y; int yushu=x2-y*shang; daan=String.valueOf(shang)+"‘"+String.valueOf(yushu)+"/"+String.valueOf(y); } else { daan=String.valueOf(x2)+"/"+String.valueOf(y); } } } } else { if(c==0) { daan=String.valueOf(z+b); } else if(c==1) { daan=String.valueOf(z-b); } else { daan=String.valueOf(z*b); } } } } else { if(c==1&&daxiao>b) { m="("+a1+")"+fuhao+String.valueOf(b); if(weizhi!=-1&&panduan==3) { if(c==0) { int x1=b*y; int x2=x+x1; if(x2%y==0) { daan=String.valueOf(x2/y); } else { if(x2>y) { int shang=x2/y; int yushu=x2-y*shang; daan=String.valueOf(shang)+"‘"+String.valueOf(yushu)+"/"+String.valueOf(y); } else { daan=String.valueOf(x2)+"/"+String.valueOf(y); } } } else if(c==1) { int x1=b*y; int x2=x-x1; if(x2%y==0) { daan=String.valueOf(x2/y); } else { if(x2>y) { int shang=x2/y; int yushu=x2-y*shang; daan=String.valueOf(shang)+"‘"+String.valueOf(yushu)+"/"+String.valueOf(y); } else { daan=String.valueOf(x2)+"/"+String.valueOf(y); } } } else if(c==2) { int x2=x*b; if(x2%y==0) { daan=String.valueOf(x2/y); } else { if(x2>y) { int shang=x2/y; int yushu=x2-y*shang; daan=String.valueOf(shang)+"‘"+String.valueOf(yushu)+"/"+String.valueOf(y); } else { daan=String.valueOf(x2)+"/"+String.valueOf(y); } } } } else { if(c==0) { daan=String.valueOf(z+b); } else if(c==1) { daan=String.valueOf(z-b); } else { daan=String.valueOf(z*b); } } } else { m=String.valueOf(b)+fuhao+"("+a1+")"; if(weizhi!=-1&&panduan==3) { if(c==0) { int x1=b*y; int x2=x+x1; if(x2%y==0) { daan=String.valueOf(x2/y); } else { if(x2>y) { int shang=x2/y; int yushu=x2-y*shang; daan=String.valueOf(shang)+"‘"+String.valueOf(yushu)+"/"+String.valueOf(y); } else { daan=String.valueOf(x2)+"/"+String.valueOf(y); } } } else if(c==1) { int x1=b*y; int x2=x1-x; if(x2%y==0) { daan=String.valueOf(x2/y); } else { if(x2>y) { int shang=x2/y; int yushu=x2-y*shang; daan=String.valueOf(shang)+"‘"+String.valueOf(yushu)+"/"+String.valueOf(y); } else { daan=String.valueOf(x2)+"/"+String.valueOf(y); } } } else if(c==2) { int x2=x*b; if(x2%y==0) { daan=String.valueOf(x2/y); } else { if(x2>y) { int shang=x2/y; int yushu=x2-y*shang; daan=String.valueOf(shang)+"‘"+String.valueOf(yushu)+"/"+String.valueOf(y); } else { daan=String.valueOf(x2)+"/"+String.valueOf(y); } } } } else { if(c==0) { daan=String.valueOf(b+z); } else if(c==1) { daan=String.valueOf(b-z); } else { daan=String.valueOf(b*z); } } } } m=m+"="; return m; } public int jianyan(String a[],int l)//检验是否重复的函数 { int flag=1; for(int i=0;i<l;i++) { if(m.equals(a[i])) { flag=0; break; } } return flag; } } int tishu; int fanwei; int m=0; String shuju[]=new String[10000]; int flag=0; Suan4 a=new Suan4(); String daan,daan1; String zhengque="",cuowu=""; %> <% tishu=Integer.parseInt((String.valueOf(session.getAttribute("tishu")))); fanwei=Integer.parseInt((String.valueOf(session.getAttribute("fanwei")))); session.setAttribute("tishu", tishu); if(m<tishu)//生成30个计算式 { shuju[m]=a.shengcheng(fanwei);//将生成的计算式储存咋数组里面 flag=a.jianyan(shuju, m);//返回是否有重复 if(flag==1)//如果没有就是1 { if(m+1==tishu) {daan=a.daan; session.setAttribute("shuju", shuju[m]); session.setAttribute("daan", daan); session.setAttribute("m", m); %> <form id="form2" name="form2" method="post" action="kuohaohuoqu.jsp"> <div style="text-align:center"> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <%out.print(m+1+"."+shuju[m]+"="); m=0;%> <br> <br> <br> <br> 请输入答案：<input name="daan1" type="text" value=""/><br /><br/> <input name="" type="submit" value="提交" /> </div> </form> <% } else { daan=a.daan; session.setAttribute("shuju", shuju[m]); session.setAttribute("daan", daan); session.setAttribute("m", m); %> <form id="form2" name="form2" method="post" action="kuohaohuoqu.jsp"> <div style="text-align:center"> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <%out.print(m+1+"."+shuju[m]+"=");%> <br> <br> <br> <br> 请输入答案：<input name="daan1" type="text" value=""/><br /><br/> <input name="" type="submit" value="下一个" /> </div> </form> <% m++; flag=0; } } else { response.setHeader("refresh","1;url = kuohao.jsp"); } } %> </body> </html>
写入数据库以及判断界面：
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" import="java.sql.Connection" import="java.sql.DriverManager"%> <!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> <style type="text/css"> body { background-image: url(image/18.jpg); } </style> </head> <body> <%! int tishu1; String error="",zhengque=""; %> <% try { Connection con = null; //定义一个MYSQL链接对象 Class.forName("com.mysql.jdbc.Driver").newInstance(); //MYSQL驱动 con = DriverManager.getConnection("jdbc:mysql://localhost:3306/test", "root", "20153246"); //链接本地MYSQL java.sql.Statement stmt; //创建声明 stmt = con.createStatement(); String shuju=String.valueOf(session.getAttribute("shuju")); String daan=String.valueOf(session.getAttribute("daan")); int m=Integer.parseInt(String.valueOf(session.getAttribute("m"))); tishu1=Integer.parseInt((String.valueOf(session.getAttribute("tishu")))); String daan1=request.getParameter("daan1"); String sql="INSERT INTO 有括号的四则运算 (shizi,result,userresult) VALUES ('"+shuju+" = "+"','"+daan+"','"+daan1+"')"; stmt.executeUpdate(sql); if(daan.equals(daan1)) { zhengque=zhengque+String.valueOf(m+1)+","; } else { error=error+String.valueOf(m+1)+","; } if(m+1==tishu1) { sql="INSERT INTO Grade (zhengque,cuowu) VALUES ('"+zhengque+"','"+error+"')"; stmt.executeUpdate(sql); %> <form id="form2" name="form2" method="post" action="xuanze.html"> <div style="text-align:center;color:#F00"> <strong> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <% out.print("正确的题目是："+zhengque+"<br>"+"错误的题目是："+error+"<br>"+"点击确定返回主界面"); zhengque=""; error=""; %> <input name="" type="submit" value="确定" /> </strong> </div> </form> <% } else { response.setHeader("refresh","0;url = kuohao.jsp"); } } catch (Exception e) { System.out.print("MYSQL ERROR:" + e.getMessage()); } %> </body> </html>
有余数的界面：
error界面：
<%@ 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> <style type="text/css"> body { background-image: url(image/7.jpg); } </style> </head> <body> <form id="form2" name="form2" method="post" action="yushuchuangdi.jsp"> <div style="text-align:center;color:#F09"> <br> <br> <br> <br> <br> <br> 请输入出题的个数：<input name="geshu" type="text" value=""/><br /><br/> 请选择出题的范围：<input name="fanwei" type="text" value=""/><br/><br/> <input name="" type="submit" value="提交" /> </div> </form> </body> </html>
参数传递界面：
<%@ 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> <body> <% try { int tishu=Integer.parseInt(request.getParameter("geshu")); int fanwei=Integer.parseInt(request.getParameter("fanwei")); session.setAttribute("tishu", tishu); session.setAttribute("fanwei", fanwei); response.setHeader("refresh","0;url = yushu.jsp"); } catch(Exception e) { %> <script type="text/javascript"> alert("输入错误，点击确定返回重新输入！！！") </script> <% response.setHeader("refresh","0;url = yushuerror.jsp"); } %> </body> </html>
显示界面：
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" import="java.util.Random"%> <!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> <style type="text/css"> body { background-image: url(image/4.jpg); } </style> </head> <body> <%! class Suan3//有余数的类 { public int x,y;//定义两个变量 public String m; public Random random=new Random(); int fanwei; public String shengcheng(int fanwei1)//定义生成函数 { fanwei=fanwei1; x=random.nextInt(fanwei); y=random.nextInt(fanwei); for(int i=0;;i++) { if(y==0) { y=random.nextInt(fanwei); } else { break; } } m=String.valueOf(x)+"/"+String.valueOf(y);//返回计算式 return m; } public String shuchu()//生成输出函数 { String daan; int shang,yushu; shang=x/y; yushu=x-shang*y; daan=String.valueOf(shang)+"/"+String.valueOf(yushu);//返回计算结果 return daan; } public int jianyan(String a[],int l)//检验是否重复的函数 { int flag=1; for(int i=0;i<l;i++) { if(m.equals(a[i])) { flag=0; break; } } return flag; } } int tishu; int fanwei; int m=0; String shuju[]=new String[10000]; int flag=0; Suan3 a=new Suan3(); String daan,daan1; %> <% tishu=Integer.parseInt((String.valueOf(session.getAttribute("tishu")))); fanwei=Integer.parseInt((String.valueOf(session.getAttribute("fanwei")))); session.setAttribute("tishu", tishu); if(m<tishu) { shuju[m]=a.shengcheng(fanwei); flag=a.jianyan(shuju, m);//返回是否有重复 if(flag==1)//如果没有就是1 { if(m+1==tishu) {daan=a.shuchu(); session.setAttribute("shuju", shuju[m]); session.setAttribute("daan", daan); session.setAttribute("m", m); %> <form id="form2" name="form2" method="post" action="yushuhuoqu.jsp"> <div style="text-align:center"> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <%out.print(m+1+"."+shuju[m]+"="); m=0;%> <br> <br> <br> <br> 请输入商：<input name="daan1" type="text" value=""/><br /><br/> 请输入余数：<input name="daan2" type="text" value=""/><br> <br> <input name="" type="submit" value="提交" /> </div> </form> <% } else { daan=a.shuchu(); session.setAttribute("shuju", shuju[m]); session.setAttribute("daan", daan); session.setAttribute("m", m); %> <form id="form2" name="form2" method="post" action="yushuhuoqu.jsp"> <div style="text-align:center"> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <%out.print(m+1+"."+shuju[m]+"=");%> <br> <br> <br> <br> 请输入商：<input name="daan1" type="text" value=""/><br /><br/> 请输入余数：<input name="daan2" type="text" value=""/><br> <br> <input name="" type="submit" value="下一个" /> </div> </form> <% m++; flag=0; } } else { response.setHeader("refresh","0;url = yushu.jsp"); } } %> </body> </html>
写入数据库以及判断界面：
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" import="java.sql.Connection" import="java.sql.DriverManager"%> <!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> <style type="text/css"> body { background-image: url(image/18.jpg); } </style> </head> <body> <%! int tishu1; String error="",zhengque=""; %> <% try { Connection con = null; //定义一个MYSQL链接对象 Class.forName("com.mysql.jdbc.Driver").newInstance(); //MYSQL驱动 con = DriverManager.getConnection("jdbc:mysql://localhost:3306/test", "root", "20153246"); //链接本地MYSQL java.sql.Statement stmt; //创建声明 stmt = con.createStatement(); String shuju=String.valueOf(session.getAttribute("shuju")); String daan=String.valueOf(session.getAttribute("daan")); int weizhi=daan.indexOf('/'); String shang1=daan.substring(0, weizhi); String yushu1=daan.substring(weizhi+1); int m=Integer.parseInt(String.valueOf(session.getAttribute("m"))); tishu1=Integer.parseInt((String.valueOf(session.getAttribute("tishu")))); String shang =request.getParameter("daan1"); String yushu =request.getParameter("daan2"); String sql="INSERT INTO 有余数的除法 (shizi,shang,yushu,usershang,useryushu) VALUES ('"+shuju+" = "+"','"+shang1+"','"+yushu1+"','"+shang+"','"+yushu+"')"; stmt.executeUpdate(sql); if(daan.equals(shang+"/"+yushu)) { zhengque=zhengque+String.valueOf(m+1)+","; } else { error=error+String.valueOf(m+1)+","; } if(m+1==tishu1) { sql="INSERT INTO Grade (zhengque,cuowu) VALUES ('"+zhengque+"','"+error+"')"; stmt.executeUpdate(sql); %> <form id="form2" name="form2" method="post" action="xuanze.html"> <div style="text-align:center;color:#F00"> <strong> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <% out.print("正确的题目是："+zhengque+"<br>"+"错误的题目是："+error+"<br>"+"点击确定返回主界面"); zhengque=""; error=""; %> <input name="" type="submit" value="确定" /> </strong> </div> </form> <% } else { response.setHeader("refresh","0;url = yushu.jsp"); } } catch (Exception e) { System.out.print("MYSQL ERROR:" + e.getMessage()); } %> </body> </html>
结果截图操作：
这是整个四则运算的所有程序代码以及实验截图，希望发现问题的朋友可以随时联系我。