//创建多线程
Thread (线程实例名称thd) =new Thread(new ThredStart(方法名称)); //方法名称指写一个方法调用
thd.Start(); //开始执行
--------------------------------------------------------------------------------------------
多线程属性
CurrentThread //获取当前运行的线程
IsAlive //获取当前现在执行状态值
Name //获取线程名称
Priority //设置或获取线程优先值
ThreadState //获取包含当前线程的状态值
----------------------------------------------
多线程方法
Start(); //执行多线程
Sleep(); //禁止线程运行的毫秒数 睡眠
Abort(); //调用该方法终止线程
Join(); //禁止调用线程，直到线程终止
Thread.Interrupt(); //中止处于Sleep或者join线程状态的线程
Suspend(); //挂起线程；如果线程已经挂断，则方法无效
Resume(); //恢复被挂起的线程
锁定
lock(this)
{
//代码
}
-------------------------------------------------------------
摇奖机
----------------------------------
namespace WindowsApplication2
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
//2005 bug需要设置
Control.CheckForIllegalCrossThreadCalls = false;
this.label1.Text = "猜";
this.label2.Text = "猜";
this.label3.Text = "猜";
//设置转换为字符串
this.label4.Text = b.ToString();
this.textBox1.Text = "100";
}
int b = 54561;
//随机
Random a = new Random();
//鼠标点击事件
private void button1_Click(object sender, EventArgs e)
{
//比较输入金额与金库金额
if (int.Parse(this.label4.Text.ToString())
MessageBox.Show("金额不够");
return;
}
//创建多线程 并未执行
Thread thd1 = new Thread(new ThreadStart(Run1));
Thread thd2 = new Thread(new ThreadStart(Run2));
Thread thd3 = new Thread(new ThreadStart(Run3));
Thread thd4 = new Thread(new ThreadStart(Run4));
//执行多线程
thd1.Start();
thd2.Start();
thd3.Start();
thd4.Start();
}
//方法
public void Run1()
{
//循环产生随机数字
for(int i=0;i<=100;i++)
{
this.label1.Text = a.Next(10).ToString();
//随机睡眠
Thread.Sleep(a.Next(10));
i++;
}
}
public void Run2()
{
for (int i = 0; i <= 100; i++)
{
this.label2.Text = a.Next(10).ToString();
Thread.Sleep(a.Next(10));
i++;
}
}
public void Run3()
{
for (int i = 0; i <= 100; i++)
{
this.label3.Text = a.Next(10).ToString();
Thread.Sleep(a.Next(10));
i++;
}
}
//控制多线程方法
public void Run4()
{
for (int i = 0; i <= 100; i++)
{
if (i == 100)
{
//判断3个随机数是否相同
if (this.label1.Text == this.label2.Text && this.label2.Text==this.label3.Text)
{
//相同增加金额10倍
b = b + int.Parse(textBox1.Text.ToString())*10;
this.label4.Text = b.ToString();
}
//不同 减少金额
b = b - int.Parse(textBox1.Text.ToString());
this.label4.Text = b.ToString();
}
}
}
}
}
------------------------------------------------------------------------------------------------------------
多线程 质数线程的控制
-----------------------
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
//导包
using System.Threading;
namespace WindowsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private Thread thd;
private void Form1_Load(object sender, EventArgs e)
{
Control.CheckForIllegalCrossThreadCalls = false;
this.button2.Enabled = false;
this.button3.Enabled = false;
this.button4.Enabled = false;
}
//停止按钮
private void button4_Click(object sender, EventArgs e)
{
this.button4.Enabled = false;
this.button1.Enabled = true;
this.button2.Enabled = true;
//清除线程
thd.Abort();
}
private void button2_Click(object sender, EventArgs e)
{
try
{
//如果线程的当前状态为运行或休眠等待,则暂停线程
//ThreadState.Running线程状态已启动
if (thd.ThreadState==ThreadState.Running || thd.ThreadState== ThreadState.WaitSleepJoin)
{
//暂停线程
thd.Suspend();
//禁用暂停按钮
this.button2.Enabled = false;
//启用恢复按钮
this.button3.Enabled = true;
//禁用停止按钮
this.button4.Enabled = false;
}
}
catch (ThreadStartException msg)
{
//输出异常信息
MessageBox.Show(msg.ToString(),"异常");
}
}
public void Generate()
{
//true=质数,false=非质数
bool Isprime = true;
//存放质数的个数
int count = 2;
//第一个数是质数,添加列表中
this.listBox1.Items.Add(2);
//执行循环生成另外24个质数
for (int i = 3; count < 50; i+=2)
{
Isprime = true;
//循环次数是要检查的数字"i"的一半
for (int j = 2; j <=(i/2); j++)
{
//检查"i"是否可以被整除
if (i%j==0)
{
Isprime=false;
break;
}
}
//显示质数并递增计算器
if (Isprime)
{
this.listBox1.Items.Add(i);
count++;
//使该线程休眠100毫秒,以启用线程的暂停和恢复
Thread.Sleep(100);
}
}
//线程完成执行后，启用和禁用这些按钮
this.button1.Enabled=true;
this.button2.Enabled=false;
this.button3.Enabled=false;
this.button4.Enabled=false;
}
private void button1_Click(object sender, EventArgs e)
{
//创建线程
thd = new Thread(new ThreadStart(Generate));
//为线程指定名称
thd.Name = "质数";
//启用暂停按钮
this.button2.Enabled = true;
//禁用开始按钮
this.button1.Enabled = false;
//启用停止按钮
this.button4.Enabled = true;
//初始化线程
//执行线程
thd.Start();
}
private void button3_Click(object sender, EventArgs e)
{
//线程状态ThreadState
//Suspended 已挂断
//SuspendRequested 正在请求挂断
//WaitSleepJoin 线程已北阻止
//Running 线程已启动
//Abort(); 清除线程
//Suspend(); 暂停进程
//Resume(); 恢复进程
if (this.thd.ThreadState== ThreadState.Suspended || thd.ThreadState== ThreadState.SuspendRequested || thd.ThreadState== ThreadState.WaitSleepJoin || Convert.ToInt32(thd.ThreadState)==96)
{
try
{
//恢复线程
thd.Resume();
//禁用恢复按钮
this.button3.Enabled = false;
//启用暂停按钮
this.button2.Enabled = true;
//启用停止按钮
this.button4.Enabled = true;
}
catch (ThreadStartException msg)
{
MessageBox.Show(msg.ToString(), "异常");
}
}
}
}
}