用C#编写5个关于考试的5个类,考试信息管理

2．考试信息管理

（1）使用控制台程序做界面

（2）创建至少5个与考试有关的类

（3）完成考试成绩的录入、统计等功能

（4）测试要求：测试程序中用到的面向对象特性。

<span style="font-size:32px;color:#ff0000;">1.主函数</span>
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace TestManage
{
    public class Program
    {
       public  static void Main(string[] args)
        {
           Menu me = new Menu();
           me.caidan();
           Console.ReadLine();
        }
    }
}
<span style="font-size:32px;color:#ff0000;">2.第一个类菜单类</span>
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace TestManage
{
    public class Menu
    {
        public void caidan()
        {
            Input pu = new Input();//成绩录入
            MaxScore ms = new MaxScore();//每门课最高分
            MinScore mi = new MinScore();//每门课最低分
            EveryAvg av = new EveryAvg();//每门课平均分
            Allavg al = new Allavg();//总课程的平均分
            AllavgOrder ao = new AllavgOrder();//按总课程平均分排序
            Show sh = new Show();//显示各科成绩
             for (int m = 0; ; m++)
            {
            Console.WriteLine("               学生成绩统计           ");
            Console.WriteLine("=========================================");
            Console.WriteLine("          1.成绩录入");
            Console.WriteLine("          2.每门课最高分");
            Console.WriteLine("          3.每门课最低分");
            Console.WriteLine("          4.每门课平均分");
            Console.WriteLine("          5.总课程的平均分");
            Console.WriteLine("          6.按总课程平均分排序");
            Console.WriteLine("          7.显示各科成绩");
            Console.WriteLine("          8.退出");
            Console.WriteLine("=========================================");
                Console.WriteLine("请输入你要执行的项目序号：");
                int k = int.Parse(Console.ReadLine());
                if (k == 8) { break; }
                else
                {
                    switch (k)
                    {
                        case 1: pu.luru(); break;
                        case 2:
                            Console.Clear();
                            ms.max(); break;
                        case 3:
                            Console.Clear();
                            mi.min(); break;
                        case 4:
                            Console.Clear();
                            av.avg(); break;
                        case 5:
                            Console.Clear();
                            al.allavg(); break;
                        case 6:
                            Console.Clear();
                            ao.allavgpaixu(); break;
                        case 7:
                            Console.Clear();
                            sh.xianshi(); break;
                    }
                }
            }
        }
    }
}
<span style="font-size:32px;color:#ff0000;">3.成绩录入类</span>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace TestManage
{
    public  class Input
    {
        public static int N { get; set; }
        public static int F { get; set; }
        public static double[] allavg2 { get; set; }
        public static double[,] score { get; set; }
        public Input()
        {
            N = 2;//人数
            F = 3;//课的数目
            allavg2 = new double[N];
            score = new double[N, F];
        }
        public   void luru() //录入函数
        {
            for (int i = 0; i < N; i++)
            {
                Console.WriteLine("请输入第" + (i + 1) + "个学生的三门课的成绩");
                for (int j = 0; j < F; j++)
                {
                    score[i, j] = double.Parse(Console.ReadLine());
                }
            }
        }
    }
}
<span style="font-size:32px;color:#ff0000;">4.每门课最高分类</span>
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace TestManage
{
    public class MaxScore:Input
    {
        public void max()
        {
            for (int j = 0; j < F; j++)
            {
                int max = 0;
                for (int k = 0; k < N - 1; k++)
                {
                    if (score[max, j] < score[k + 1, j])
                    {
                        max = k + 1;
                    }
                }
                Console.WriteLine("课程" + (j + 1) + "的最高分为" + score[max, j]);
            }
        }
    }
}
<span style="font-size:32px;color:#ff0000;">5.每门课最低分类</span>
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace TestManage
{
    public class MinScore:Input
    {
        public void min()
        {
            for (int j = 0; j < F; j++)
            {
                int min = 0;
                for (int k = 0; k < N - 1; k++)
                {
                    if (score[min, j] > score[k + 1, j])
                    {
                        min = k + 1;
                    }
                }
                Console.WriteLine("课程" + (j + 1) + "的最低分为" + score[min, j]);
            }
        }
    }
}
<span style="font-size:32px;color:#ff0000;">6.每门课评价分类</span>
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace TestManage
{
    public class EveryAvg:Input
    {
        public void avg()
        {
            double sum = 0, avg;
            for (int j = 0; j < F; j++)
            {
                for (int k = 0; k < N; k++)
                { sum = sum + score[k, j]; }
                avg = sum / N;
                sum = 0;
                Console.WriteLine("课程" + (j + 1) + "的平均分为" + avg);
            }
        }
    }
}

<span style="font-size:32px;color:#ff0000;">7.总课程平均分类</span>
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace TestManage
{
    public class Allavg:Input
    {
        public void allavg()
        {
            double sum = 0;
            for (int j = 0; j < N; j++)
            {
                for (int k = 0; k < F; k++)
                { sum = sum + score[j, k]; }
                allavg2[j] = sum / F;
                sum = 0;
            }
            for (int k = 0; k < 10; k++)
            {
                try
                {
                    Console.WriteLine("学号为   " + (k + 1) + "的平均成绩为" + allavg2[k]);
                }
                catch(Exception ex)
                { }
            }
        }
    }
}
<span style="font-size:32px;color:#ff0000;">8.按总课程平均排序类</span>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace TestManage
{
    public class AllavgOrder : Input
    {
        public void allavgpaixu()
        {
            for (int j = 0; j < 9; j++)
            {
                for (int k = 0; k < 9 - j; k++)
                {
                    try
                    {
                        if (allavg2[k] < allavg2[k + 1])
                        {
                            double temp;
                            temp = allavg2[k];
                            allavg2[k] = allavg2[k + 1];
                            allavg2[k + 1] = temp;
                        }
                    }
                    catch (Exception ex)
                    {  }
                }
            } Console.WriteLine("对平均成绩排序为");
            for (int j = 0; j < 10; j++)
            {
                try
                {
                    Console.WriteLine(allavg2[j]);
                }
                catch (Exception ex) { }
            }
        }
    }
}
<span style="font-size:32px;color:#ff0000;">9.显示各科成绩类</span>
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace TestManage
{
    public class Show:Input
    {
        public void xianshi()
        {
            Console.WriteLine("学号 课程1 课程2 课程3");
            for (int j = 0; j < 10; j++)
            {
                try
                {
                    Console.WriteLine(j + "     " + score[j, 0] + "    "
                         + score[j, 1] + "    " + score[j, 2]);
                }
                catch (Exception ex)
                { Console.WriteLine(ex.Message); }
            }
        }
    }
}