想让一个label在form窗体上间隔一段时间闪烁一次隔一段时间在闪烁一次

霜寒月冷 2008-10-22 11:15:12

想让一个label在form窗体上间隔一段时间闪烁一次隔一段时间在闪烁一次

间隔时间成1,3,5....2n-1,递增的;
不要用timer控件,想用多线程using System.Threading
不知道如何操作.大家帮看下.

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beckfun 2008-10-23

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创建一个线程，在线程类里面定义一个label控件，在界面上拖一个label控件，

ClassStartThread startThread = new ClassStartThread( this.label1);

            Thread st = new Thread(new ThreadStart(startThread.StartThread));

            tUdpThread.IsBackground = true;

            tUdpThread.Start();

[code=C#]

class ClassStartThread
{
private int tm=0;
private int lt=0;
private Label label1;
public ClassStartUdpThread(Label label2)
{
this.label1 = label2;
tm = DateTime.Now.Second;
tm += DateTime.Now.Minute * 60;
tm += DateTime.Now.Hour * 3600;
}
public void StartThread()
{
for(int i=0;;i++)
{
lt= DateTime.Now.Second;
lt += DateTime.Now.Minute * 60;
lt += DateTime.Now.Hour * 3600;
if((lt-tm)==((2*i)-1))
{
this.label1.Enabled=false;
}
Thread.Sleep(10);
this.label1.Enabled=true;
}
}
}[/code]

大致就这样，随便写的，也不知道有没有错误，有错误，请楼下的指正！在此先谢过了！

gogogo 2008-10-23

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为什么不用timer控件，以下的代码，timer1用于显示闪的效果，timer2用于控制你所谓的递增间隔的时间闪烁的控制，更简单更容易理解
Form1.Designer.cs

namespace WindowsApplication5

{

    partial class Form1

    {

        /// <summary>

        /// 必需的设计器变量。

        /// </summary>

        private System.ComponentModel.IContainer components = null;



        /// <summary>

        /// 清理所有正在使用的资源。

        /// </summary>

        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>

        protected override void Dispose(bool disposing)

        {

            if (disposing && (components != null))

            {

                components.Dispose();

            }

            base.Dispose(disposing);

        }



        #region Windows 窗体设计器生成的代码



        /// <summary>

        /// 设计器支持所需的方法 - 不要

        /// 使用代码编辑器修改此方法的内容。

        /// </summary>

        private void InitializeComponent()

        {

            this.components = new System.ComponentModel.Container();

            this.label1 = new System.Windows.Forms.Label();

            this.timer1 = new System.Windows.Forms.Timer(this.components);

            this.timer2 = new System.Windows.Forms.Timer(this.components);

            this.button1 = new System.Windows.Forms.Button();

            this.SuspendLayout();

            // 

            // label1

            // 

            this.label1.AutoSize = true;

            this.label1.Font = new System.Drawing.Font("宋体", 21.75F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(134)));

            this.label1.Location = new System.Drawing.Point(58, 53);

            this.label1.Name = "label1";

            this.label1.Size = new System.Drawing.Size(71, 29);

            this.label1.TabIndex = 0;

            this.label1.Text = "我闪";

            // 

            // timer1

            // 

            this.timer1.Interval = 200;

            this.timer1.Tick += new System.EventHandler(this.timer1_Tick);

            // 

            // timer2

            // 

            this.timer2.Interval = 200;

            this.timer2.Tick += new System.EventHandler(this.timer2_Tick);

            // 

            // button1

            // 

            this.button1.Location = new System.Drawing.Point(270, 78);

            this.button1.Name = "button1";

            this.button1.Size = new System.Drawing.Size(75, 23);

            this.button1.TabIndex = 1;

            this.button1.Text = "button1";

            this.button1.UseVisualStyleBackColor = true;

            this.button1.Click += new System.EventHandler(this.button1_Click);

            // 

            // Form1

            // 

            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);

            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;

            this.ClientSize = new System.Drawing.Size(386, 606);

            this.Controls.Add(this.button1);

            this.Controls.Add(this.label1);

            this.Name = "Form1";

            this.Text = "Form1";

            this.ResumeLayout(false);

            this.PerformLayout();



        }



        #endregion



        private System.Windows.Forms.Label label1;

        private System.Windows.Forms.Timer timer1;

        private System.Windows.Forms.Timer timer2;

        private System.Windows.Forms.Button button1;

    }

}

Form1.cs

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.Windows.Forms;



namespace WindowsApplication5

{

    public partial class Form1 : Form

    {

        private int nN = 0, nCount = 0;

 

        public Form1()

        {

            InitializeComponent();

        }



        private void timer1_Tick(object sender, EventArgs e)

        {

            label1.Visible = true;

            timer1.Enabled = false;

        }



        private void button1_Click(object sender, EventArgs e)

        {

            timer2.Enabled = true;

        }



        private void timer2_Tick(object sender, EventArgs e)

        {

            if (nCount >= 2 * nN - 1)

            {

                nCount = 0;

                nN++;

                label1.Visible = false;

                timer1.Enabled = true;

            }

            nCount++;

        }

    }

}