1、線程執行帶參數的方法
新建一個C#窗體應用程序,在窗體上添加一個按鈕。
Form1.cs代碼爲:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Threading; //線程命名空間
namespace 線程2
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
Thread th = new Thread(Test);
th.IsBackground = true;
th.Start();
}
private void Test(string s) //Test方法帶參數
{
for (int i = 0; i < 10000;i++ )
{
Console.WriteLine(i);
}
}
}
}
程序會報錯:
注意:(1)如果線程的執行方法需要參數,那麼要求這個參數必須是object類型。
將Form1.cs代碼改爲:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Threading; //線程命名空間
namespace 線程2
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
Thread th = new Thread(Test);
th.IsBackground = true;
th.Start("123"); //Test()方法傳參數時傳給Start()
}
private void Test(object s)
{
string str = (string)s;
for (int i = 0; i <10000;i++ )
{
Console.WriteLine(i);
}
}
}
}
2、實例---搖獎機
(1)新建一個C#WINFORM程序,在窗體上添加一個按鈕和三個label控件。
(2)Form1.cs代碼爲:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Threading; //線程命名空間
namespace 線程2
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
bool b = false; //啓停標誌
Thread th;
private void button1_Click(object sender, EventArgs e)
{
if (b==false)
{
b = true;
button1.Text = "停止"; //開始後button變爲停止
th = new Thread(playGame);
th.IsBackground = true;
th.Start();
}
else
{
b = false;
button1.Text = "開始";
}
}
private void playGame() //產生隨機數
{
Random r = new Random();
while (b)
{
label1.Text = r.Next(0, 10).ToString(); //爲三個label分別賦值0-10之間隨機數
label2.Text = r.Next(0, 10).ToString();
label3.Text = r.Next(0, 10).ToString();
}
}
private void Form1_Load(object sender, EventArgs e)
{
Control.CheckForIllegalCrossThreadCalls = false; //
}
private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
if (th != null)
{
th.Abort(); //結束這個線程
}
}
}
}
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作者:陽光下的Smiles
來源:CSDN
原文:https://blog.csdn.net/liyuqian199695/article/details/60571559
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