学生成绩管理系统

来源：互联网发布：sftp windows 编辑：程序博客网时间：2024/05/01 22:52
using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace @string{    class Program    {        static void Main(string[] args)        {            Stu_Manage myuser = new Stu_Manage();            myuser.Chech();        }    }    public class Student    {        public int no;        public double math, english;        public double csharp, network;        public double avg, all;        public string name;        //显示学生信息        public void ShowStuInfo()        {            Console.WriteLine("\n学生信息：");            Console.WriteLine("\n学号：{0}", no);            Console.WriteLine("\t姓名：{1}：", name);            Console.WriteLine("\t数学：{2}", math);            Console.WriteLine("\t英语：{3}", english);            Console.WriteLine("\t   c#：{4}", csharp);            Console.WriteLine("\t计算机网络：{5}", network);            Console.WriteLine("\t平均成绩：{6}", avg);            Console.WriteLine("\t总成绩：{7}", all);            Console.WriteLine();        }    }    //定义学生信息管理类    class Stu_Manage    {        int x = 0;        //声明一个结构体类数组，数组名stud        Student[] stud = new Student[10];        //Add()方法添加学生信息        public void Add()        {            Console.WriteLine("请输入要添加的学生的信息：");            Console.WriteLine("请输入学号：");            stud[x].no = int.Parse(Console.ReadLine());            Console.WriteLine("\n请输入姓名：");            stud[x].name = Console.ReadLine();            Console.WriteLine("\n数学成绩:");            stud[x].math = double.Parse(Console.ReadLine());            Console.WriteLine("\n英语成绩：");            stud[x].english = double.Parse(Console.ReadLine());            Console.WriteLine("\nC#成绩：");            stud[x].csharp = double.Parse(Console.ReadLine());            Console.WriteLine("\n计算机网络成绩:");            stud[x].network = double.Parse(Console.ReadLine());            //定义一个数组将输入的成绩存储            double[] inform = new double[] { stud[x].math, stud[x].english, stud[x].csharp, stud[x].network };            for (int i = 0; i < inform.Length; i++)            {                stud[x].all += inform[i];                stud[x].avg = stud[x].all / 4;                stud[x].ShowStuInfo();                x = x + 1;            }        }        public void Delete()        {            int n = -1;            int no = int.Parse(Console.ReadLine());            for (int i = 0; i < x; i++)            {                if (no == stud[i].no)                {                    n = i;                    for (int c = n + 1; c < x; c++)                    {                        //交换数组索引值，对指定元素进行删除                        stud[c - 1] = stud[c];                    }                    x = x - 1;                    break;                }            }        }        public void Search_no()        {            int n = -1;            int no = int.Parse(Console.ReadLine());            for (int i = 0; i < x; i++)            {                if (no == stud[i].no)                {                    n = i;                    stud[i].ShowStuInfo();                    break;                }            }            if (n == -1)            {                Console.WriteLine();            }        }        public void Search_name()        {            int n = -1;            string name = Console.ReadLine();            for (int i = 0; i < x; i++)            {                if (name == stud[i].name)                {                    n = i;                    stud[i].ShowStuInfo();                    break;                }            }            if (n == -1)            {                Console.WriteLine();            }        }        public void Search_score()        {            for (int i = x - 1; i >= 0; i--)            {                for (int j = 0; j <= i; j++)                {                    if (stud[j].all > stud[j + 1].all)                    {                        stud[x] = stud[j];                        stud[j] = stud[j + 1];                        stud[j + 1] = stud[x];                    }                }            }            int[] mc = new int[x];            for (int i = 0; i < x; i++)            {                mc[i] = i + 1;                Console.WriteLine(stud[i].no + "\t");                Console.WriteLine(stud[i].name + "\t");                Console.WriteLine(stud[i].math + "\t");                Console.WriteLine(stud[i].english + "\t");                Console.WriteLine(stud[i].csharp + "\t");                Console.WriteLine(stud[i].network + "\t");                Console.WriteLine(stud[i].avg + "\t");                Console.WriteLine(stud[i].all + "\t");                Console.WriteLine();            }        }        public void Chech()        {            do            {                Console.WriteLine("请选择：\n 1、添加学生信息\n 2、删除学生信息\n 3、查询按学号\n 4、查询按姓名\n 5、查询成绩单\n 6、退出系统");                int number = int.Parse(Console.ReadLine());                if (number > 6 || number < 1)                {                    Console.WriteLine("输入有误请重新输入");                }                switch (number)                {                    case 1:                        Add();                        break;                    case 2:                        Console.WriteLine("请输入要删除学生的学号：");                        Delete();                        break;                    case 3:                        Console.WriteLine("请输入学号：");                        Search_no();                        break;                    case 4:                        Console.WriteLine("请输入姓名：");                        Search_name();                        break;                    case 5:                        Console.WriteLine("成绩单：");                        Console.WriteLine("名次\t学号\t姓名\t数学\t英语\tC#\t计算机网络\t平均\t总成绩");                        Search_score();                        break;                    case 6:                        Environment.Exit(0);                        break;                }                Console.WriteLine("\n是否要继续！");            } while (true);        }    }}
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