C#程序设计实验报告实验指导书-邵佳楠

金陵科技学院实验报告

4、设计一个Windows应用程序，在该程序中首先构造一个学生基本类，再分别构造小学生、中学生、大学生派生类，当输入相关数据，单击不用的按钮时，将分别创建不同的学生类对象，并输出当前学生的总人数，该学生的姓名，学生类型，平均成绩。

程序要求：

（1）每个学生都有的字段为姓名、年龄。

（2）小学生的字段还有语文，数学，用来表示这两科的成绩。 （3）中学生在此基础上增加英语成绩。 （4）大学生分为必修课和选修课两项成绩。

（5）学生类提供方法来统计自己的总成绩并输出。 （6）通过静态成员自动记录学生总人数。 （7）成员初始化通过构造函数完成。 using System;

using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text;

using System.Threading.Tasks; using System.Windows.Forms;

namespace WindowsFormsApplication5 {

public partial class Form1 : Form {

public Form1() {

InitializeComponent(); }

private void button1_Click(object sender, EventArgs e) {

int age = Convert.ToInt32(txtAge.Text);

double sub1 = Convert.ToDouble(txtSub1.Text); double sub2 = Convert.ToDouble(txtSub2.Text); Pupil p = new Pupil(txtName.Text, age, sub1, sub2); lblShow.Text += p.getInfo(); }

private void button2_Click(object sender, EventArgs e) {

int age = Convert.ToInt32(txtAge.Text);

double sub1 = Convert.ToDouble(txtSub1.Text); double sub2 = Convert.ToDouble(txtSub2.Text); double sub3 = Convert.ToDouble(txtSub3.Text);

Middle p = new Middle(txtName.Text, age, sub1, sub2, sub3); lblShow.Text += p.getInfo();

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金陵科技学院实验报告

}

private void button3_Click(object sender, EventArgs e) {

int age = Convert.ToInt32(txtAge.Text);

double sub1 = Convert.ToDouble(txtSub1.Text); double sub2 = Convert.ToDouble(txtSub2.Text); double sub3 = Convert.ToDouble(txtSub3.Text);

College p = new College(txtName.Text, age, sub1, sub2, sub3); lblShow.Text += p.getInfo(); } } }

using System;

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

using System.Threading.Tasks;

namespace WindowsFormsApplication5 {

public abstract class Student {

protected string name; protected int age;

public static int number;

public Student(string name, int age) {

this.name = name; this.age = age; number++; }

public string Name {

get { return name; } }

public virtual string type {

get { return \学生\ }

public abstract double total(); public string getInfo() {

string result = string.Format(\总人数：{0},姓名：{1},{2},{3}岁\number, Name, type, age);

if (type == \小学生2\

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金陵科技学院实验报告

result += string.Format(\平均成绩为{0:N2}:\\n\ else if (type == \中学生\

result += string.Format(\平均成绩为{0:N2}:\\n\ else

result += string.Format(\总学分为{0:N2}:\\n\ return result; } } }

using System;

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

using System.Threading.Tasks;

namespace WindowsFormsApplication5 {

public class Pupil : Student {

protected double chinese; protected double math;

public Pupil(string name, int age, double chinese, double math) : base(name, age) {

this.chinese = chinese; this.math = math; }

public override string type {

get {

return \小学生\ } }

public override double total() {

return chinese + math; } } }

using System;

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

using System.Threading.Tasks;

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金陵科技学院实验报告

namespace WindowsFormsApplication5 {

public class Middle : Student {

protected double chinese; protected double math; protected double english;

public Middle(string name, int age, double chinese, double math, double english) : base(name, age) {

this.chinese = chinese; this.math = math; this.english = english; }

public override string type {

get {

return \中学生\ } }

public override double total() {

return chinese + math + english; } } }

using System;

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

using System.Threading.Tasks;

namespace WindowsFormsApplication5 {

public class College : Student {

protected double chinese; protected double math; protected double english;

public College(string name, int age, double chinese, double math, double english) : base(name, age) {

this.chinese = chinese; this.math = math;

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