}
class Program
{ static void Main(string[] args) { List list = new List(); list.add(\); list.add(1.23); list.add(2); list.add('a');
Console.WriteLine(\元素序列:{0}\,list.disp()); Console.WriteLine(\元素个数:{0}\,list.getnum()); Console.WriteLine(\位置1的元素:{0}\,list.get(1)); Console.WriteLine(\删除位置2的元素\); list.delete(2);
Console.WriteLine(\元素序列:{0}\, list.disp()); } }
课本124页11 public class Student { private string name; private int eng, math, sum; public int psum { get { return sum; } }
public void inscore() { Console.Write(\姓名:\); name = Console.ReadLine(); Console.Write(\英语:\);
eng = int.Parse(Console.ReadLine()); Console.Write(\数学:\);
math = int.Parse(Console.ReadLine()); sum = eng + math; }
public void display()
{ Console.WriteLine(\, name, eng, math, sum); } }
class Program
{ const int Max = 100;
static void sort(int n, params Student[] p) { int i, j; bool exchange; Student tmp;
for (i = 0; i < n - 1; i++)
//采用冒泡排序法排序
{ exchange = false;
for (j = n - 2; j >= i; j--) if (p[j + 1].psum > p[j].psum) { tmp = p[j + 1]; p[j + 1] = p[j]; p[j] = tmp; exchange = true; }
if (exchange == false) break; } }
static void Main(string[] args) { int n, i;
Student[] p = new Student[Max]; //定义对象引用数组 Console.Write(\);
n = int.Parse(Console.ReadLine());
for (i = 0; i < n; i++) //创建对象引用的实例 p[i] = new Student(); for (i = 0; i < n; i++)
{ Console.WriteLine(\输入第{0}个学生数据:\, i + 1); p[i].inscore(); }
Console.WriteLine(\排序前:\);
Console.WriteLine(\姓名\\t英语\\t数学\\t总分\); for (i = 0; i < n; i++)
{ Console.Write(\序号{0}:\, i + 1); p[i].display(); }
sort(n, p); //按总降序排序 Console.WriteLine(\排序后:\);
Console.WriteLine(\姓名\\t英语\\t数学\\t总分\); for (i = 0; i < n; i++)
{ Console.Write(\第{0}名:\, i + 1); p[i].display(); } }
}
课本124上机实验6
class Student //学生类 { int sno; //学号 string sname; //姓名
Course[] course; //Course类对象数组 int[] score; //课程成绩数组
//p[j+1]<->p[j]
double sgpa1; //常见GPA值 double sgpa2; //标准GPA值 public int psno //psno属性可读可写 { get
{ return sno; } set
{ sno = value; } }
public string psname //psname属性可读可写 { get
{ return sname; } set
{ sname = value; } }
public void setcourse(params Course[] course1) //设置课程 { course = new Course[course1.Length]; for (int i = 0; i < course1.Length; i++) course[i] = course1[i]; }
public void setscore(int[] score1) //设置分数 { score = new int[score1.Length];
for (int i = 0; i < score1.Length; i++) score[i] = score1[i]; }
public void computegpa() //根据课程的学分以及学生成绩计算GPA { int i;
double s, sumc = 0, sumgpa1 = 0, sumgpa2 = 0; for (i = 0; i < score.Length; i++) { if (score[i] >= 90)
s = 4.0; //点数 else if (score[i] >= 80) s = 3.0;
else if (score[i] >= 70) s = 2.0;
else if (score[i] >= 60) s = 1.0; else
s = 0.0;
sumgpa1 += course[i].pcredits * s; sumgpa2 += course[i].pcredits * score[i]; sumc += course[i].pcredits; }
sgpa1 = sumgpa1 / sumc;
sgpa2 = sumgpa2 * 4 / sumc / 100;
}
public void dispstud() //输出学生信息
{ Console.WriteLine(\学号:{0}\\t姓名:{1}\, sno, sname); Console.WriteLine(\课程名\\t学分\\t分数\); for (int i = 0; i < course.Length; i++)
Console.WriteLine(\, course[i].pcname, course[i].pcredits, score[i]); }
public void dispgpa() //输出GPA
{ Console.WriteLine(\常见算法GPA={0:n},标准算法GPA={1:n}\, sgpa1, sgpa2); } }
class Course //课程类 { string cname; //课程名 int credits; //课程学分 public Course() { }
public Course(string name, int xf) //构造函数 { cname = name; credits = xf; }
public string pcname { get
{ return cname; } set
{ cname = value; } }
public int pcredits { get
{ return credits; } set
{ credits = value; } } }
class Program
{ static void Main(string[] args)
{ Course[] course1 = new Course[] {new Course(\课程1\,4),new Course(\课程2\,3), new Course(\课程3\,2),new Course(\课程4\,6),new Course(\课程5\,3)}; int[] score1 = new int[] { 92, 80, 98, 70, 89 }; Student s1 = new Student(); s1.psno = 1; s1.psname = \王华\; s1.setcourse(course1); s1.setscore(score1); s1.computegpa(); s1.dispstud();
//pcredits属性，课程学分可读可写 //pcname属性，课程名可读可写
s1.dispgpa(); }
} 课本157页7 using System;
using System.Collections.Generic; using System.Text;
namespace Proj7_15
{ public class Employee
{ private double bsalary= 1000; private double psalary; private int n; public int pn { get { return n; } set { n = value; } }
public double compsalary() { Console.Write(\工作年数:\);
pn = int.Parse(Console.ReadLine()); psalary = bsalary+30*pn; return psalary; } }
public class UEmployee : Employee { new public double compsalary() { return 1.5 * base.compsalary(); } }
class Program
{ static void Main(string[] args) { Employee emp1 = new Employee();
Console.WriteLine(\该普通职工工资:{0}\, emp1.compsalary()); UEmployee emp2 = new UEmployee();
Console.WriteLine(\该本科生职工工资:{0}\, emp2.compsalary()); } } }
课本157页8
public class Employee //普通职工类
{ private double bsalary = 1000; //基本工资 private double psalary; //实际工资 private int n; //工作年数 public int pn