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1、C# Visual Studio 2008实验报告附源代码using System; usingSystem.Collections.Generic;using System.Linq;using System.Text; 1、创建C#控制台应用程序。设计一个简单的密码验证程序，若密码正确，则显示“欢迎进入本系统！”，否则显示“密码输入错误，请重新输入！”。若连续三次密码输入错误，则显示“对不起，超过最多输入次数，取消服务！”，程序退出。namespace ConsoleApplication1class Program static void Main(string args) int i
2、= 0; string mima = 123321; bool k = true; Console.WriteLine( ); Console.WriteLine( 欢迎使用本系统nn); Console.WriteLine( 请输入您的服务密码： ); while (k) string get = Console.ReadLine(); if (get != mima) i+; if (i = 3) Console.WriteLine(对不起，输入的密码错误次数超过三次，nn已取消服务，请按任意键结束！ ！); Console.ReadLine(); break; else Console.
3、WriteLine(对不起，密码有误，已经输入0次，请重新输入 ！,i ); else Console.WriteLine(欢迎进入本系统！); Console.ReadLine(); break; using System;using System.Collections.Generic;using System.Linq;using System.Text;4定义一个shape抽象类，利用它作为基类派生出Rectangle、Circle等具体形状类，已知具体形状类均具有两个方法GetArea和GetPerim，分别用来求形状的面积和周长。最后编写一个测试程序对产生的类的功能进行验证。nam
4、espace shiyan14 public abstract class Shape public double GetArea() return 0; public double GetPerim() return 0; public class Circle:Shape private double r; public Circle(double a) r=a; public new double GetArea() return Math.PI*r*r; public new double GetPerim() return Math.PI*2*r; public class Rect
5、angle : Shape private double a, b; public Rectangle(double c, double d) a = c; b = d; public new double GetArea() return a*b; public new double GetPerim() return (2*(a+b); class Program static void Main(string args) Circle str = new Circle(3); Rectangle ch = new Rectangle(5, 10); Console.WriteLine(n
6、0圆的半径初始化为：R=3n); Console.WriteLine( =圆的面积为：0n, str.GetArea(); Console.WriteLine( =圆的周长为：0n, str.GetPerim(); Console.WriteLine(n0初始化长方形 长为：10，宽为：5n); Console.WriteLine( =长方形面积：0n, ch.GetArea(); Console.WriteLine( =长方形周长：0n, ch.GetPerim(); Console.Read(); 编程实现一个模拟闹铃的程序，具有闹铃、继续闹铃、打会盹儿，停止闹铃的功能using Syst
7、em;using System.Collections.Generic;using System.Linq; using System.Text; namespace shiyan15 public class clock System.Media.SoundPlayer music; public void alarm() music = new System.Media.SoundPlayer(Track06.wav); music.Play(); public void goon() music = new System.Media.SoundPlayer(Track06.wav); m
8、usic.Play(); public void rest() music.Stop(); System.Threading.Thread.Sleep(15000); music = new System.Media.SoundPlayer(Track06.wav); music.Play(); class Program static void Main(string args) clock a = new clock(); Console.WriteLine(nn=主菜单=); Console.WriteLine(nn 1 :闹铃); Console.WriteLine(nn 2 :继续闹
9、铃); Console.WriteLine(nn 3 :稍后闹铃); Console.WriteLine(nn 4 :停止闹铃); Console.WriteLine(n请输入您要选择的编号); int i = Console.Read(); Console.ReadLine(); if (i = 1) Environment.Exit(0); a.alarm(); System.Console.Clear(); Console.WriteLine(nn=主菜单=); Console.WriteLine(nn 2 :继续闹铃); Console.WriteLine(nn 3 :稍后闹铃); C
10、onsole.WriteLine(nn 4 :停止闹铃); Console.WriteLine(n您还需要的服务为); Console.ReadLine(); if (i = 2) Environment.Exit(0); a.goon(); System.Console.Clear(); Console.WriteLine(nn=主菜单=); Console.WriteLine(nn 1 : 闹铃); Console.WriteLine(nn 3 :稍后闹铃); Console.WriteLine(nn 4 :停止闹铃); Console.WriteLine(n您还需要的服务为); Console.ReadLine(); if (i = 3)
