要求开发一个程序实现如下情况：一个家庭有三个孩子，爸爸妈妈不断削苹果往盘子里面放，老大、老二、老三不断从盘子里面取苹果吃。盘子的大小有限，最多只能放5个苹果，并且爸妈不能同时往盘子里面放苹果，妈妈具有优先权。三个孩子取苹果时，盘子不能为空，三人不能同时取，老三优先权最高，老大最低。老大吃的最快，取的频率最高，老二次之。
说明：（实体对应对象，对象-类，类中有属性和方法，类与类之间的联系跟实体与实体之间的联系一样）
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
namespace ConsoleApplication2
{
public class Program
{
//出现的问题：dish类与其他两类的对应关系
//多线程针对的是什么，共享那块怎么处理
static void Main(string[] args)
{
Dish dish = new Dish();
PeelAnApple Mother = new PeelAnApple("Mother", dish);
PeelAnApple Father = new PeelAnApple("Father", dish);
EatApple child1 = new EatApple("child1", dish);
EatApple child2 = new EatApple("child2", dish);
EatApple child3 = new EatApple("child3", dish);
Thread th_Father, th_Mother, th_child1, th_child2, th_child3;
th_Mother = new Thread(new ThreadStart(Mother.Peel));
th_Father = new Thread(new ThreadStart(Father.Peel));
th_child1 = new Thread(new ThreadStart(child1.TimeJudge));
th_child2 = new Thread(new ThreadStart(child2.TimeJudge));
th_child3 = new Thread(new ThreadStart(child3.TimeJudge));
//th_Mother.Priority = ThreadPriority.Highest;
//th_Father.Priority = ThreadPriority.Lowest;
//th_child1.Priority = ThreadPriority.Highest;
//th_child2.Priority = ThreadPriority.Normal;
//th_child3.Priority = ThreadPriority.Lowest;
th_Mother.Start();
th_Father.Start();
th_child2.Start();
th_child3.Start();
th_child1.Start();
Console.ReadLine();
}
}
//削苹果
public class PeelAnApple
{
private string Personname;
public Dish dish;
//构造函数
public PeelAnApple(string name, Dish dish)
{
this.dish = dish;
this.Personname = name;
}
public void Peel()
{
//循环一直在削苹果
while (true)
{
// Console.WriteLine(Personname + "在削苹果");
Thread.Sleep(800);
dish.PlaceOnThePlate(Personname);
}
}
}
//吃苹果
public class EatApple
{
public Dish dish;
public string EatPersonname;
public EatApple(string name, Dish dish)
{
this.dish = dish;
this.EatPersonname = name;
}
///根据人判断吃的时间
public void TimeJudge()
{
while (true)
{
switch (EatPersonname)
{
case "child1":
dish.GetFromThePlate(EatPersonname);
//Console.Write("线程"+Thread.CurrentThread.Name);
Thread.Sleep(800);
Console.WriteLine("child1在吃");
break;
case "child2":
Thread.Sleep(1000);
dish.GetFromThePlate(EatPersonname);
Console.WriteLine("child2在吃");
break;
case "child3":
Thread.Sleep(1200);
dish.GetFromThePlate(EatPersonname);
Console.WriteLine("child3在吃");
break;
default:
Console.WriteLine("到底是那一个娃在吃？");
break;
}
}
}
}
//盘子
public class Dish
{
public int num = 0;
//public string Personname;
public int AppleCount = 0;
//public bool IFCanPlace = true;
/// <summary>
/// 对盘子进行操作
/// </summary>
/// <param name="name"></param>
//public Dish(string name)
//{
// this.Personname = name;
//}
public Dish()
{
}
public void PlaceOnThePlate(string Personname)
{
//只能有一个人fangpingguo
lock (this)
{
if (AppleCount > 4)
{
Console.WriteLine("盘子已经放满," + Personname + "请等待");
Monitor.Wait(this);
}
else
{
AppleCount++;
num++;
Console.WriteLine(Personname + "放了一个苹果，现有苹果数，：" + AppleCount);
Monitor.PulseAll(this);
}
if (num > 100)
{
Thread.CurrentThread.Abort();
}
}
}
public void GetFromThePlate(string Personname)
{
//只有一个人的时候能取
lock (this)
{
if (AppleCount <= 0)
{
Console.WriteLine("一个苹果没有，" + Personname + "在等待");
Monitor.Wait(this);
}
else
{
AppleCount--;
Console.WriteLine(Personname + "取走一个苹果");
Monitor.PulseAll(this);
}
}
}
}
}
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading; namespace ConsoleApplication2 { public class Program { //出现的问题：dish类与其他两类的对应关系 //多线程针对的是什么，共享那块怎么处理 static void Main(string[] args) { Dish dish = new Dish(); PeelAnApple Mother = new PeelAnApple("Mother", dish); PeelAnApple Father = new PeelAnApple("Father", dish); EatApple child1 = new EatApple("child1", dish); EatApple child2 = new EatApple("child2", dish); EatApple child3 = new EatApple("child3", dish); Thread th_Father, th_Mother, th_child1, th_child2, th_child3; th_Mother = new Thread(new ThreadStart(Mother.Peel)); th_Father = new Thread(new ThreadStart(Father.Peel)); th_child1 = new Thread(new ThreadStart(child1.TimeJudge)); th_child2 = new Thread(new ThreadStart(child2.TimeJudge)); th_child3 = new Thread(new ThreadStart(child3.TimeJudge)); //th_Mother.Priority = ThreadPriority.Highest; //th_Father.Priority = ThreadPriority.Lowest; //th_child1.Priority = ThreadPriority.Highest; //th_child2.Priority = ThreadPriority.Normal; //th_child3.Priority = ThreadPriority.Lowest; th_Mother.Start(); th_Father.Start(); th_child2.Start(); th_child3.Start(); th_child1.Start(); Console.ReadLine(); } } //削苹果 public class PeelAnApple { private string Personname; public Dish dish; //构造函数 public PeelAnApple(string name, Dish dish) { this.dish = dish; this.Personname = name; } public void Peel() { //循环一直在削苹果 while (true) { // Console.WriteLine(Personname + "在削苹果"); Thread.Sleep(800); dish.PlaceOnThePlate(Personname); } } } //吃苹果 public class EatApple { public Dish dish; public string EatPersonname; public EatApple(string name, Dish dish) { this.dish = dish; this.EatPersonname = name; } ///根据人判断吃的时间 public void TimeJudge() { while (true) { switch (EatPersonname) { case "child1": dish.GetFromThePlate(EatPersonname); //Console.Write("线程"+Thread.CurrentThread.Name); Thread.Sleep(800); Console.WriteLine("child1在吃"); break; case "child2": Thread.Sleep(1000); dish.GetFromThePlate(EatPersonname); Console.WriteLine("child2在吃"); break; case "child3": Thread.Sleep(1200); dish.GetFromThePlate(EatPersonname); Console.WriteLine("child3在吃"); break; default: Console.WriteLine("到底是那一个娃在吃？"); break; } } } } //盘子 public class Dish { public int num = 0; //public string Personname; public int AppleCount = 0; //public bool IFCanPlace = true; /// <summary> /// 对盘子进行操作 /// </summary> /// <param name="name"></param> //public Dish(string name) //{ // this.Personname = name; //} public Dish() { } public void PlaceOnThePlate(string Personname) { //只能有一个人fangpingguo lock (this) { if (AppleCount > 4) { Console.WriteLine("盘子已经放满," + Personname + "请等待"); Monitor.Wait(this); } else { AppleCount++; num++; Console.WriteLine(Personname + "放了一个苹果，现有苹果数，：" + AppleCount); Monitor.PulseAll(this); } if (num > 100) { Thread.CurrentThread.Abort(); } } } public void GetFromThePlate(string Personname) { //只有一个人的时候能取 lock (this) { if (AppleCount <= 0) { Console.WriteLine("一个苹果没有，" + Personname + "在等待"); Monitor.Wait(this); } else { AppleCount--; Console.WriteLine(Personname + "取走一个苹果"); Monitor.PulseAll(this); } } } } }
