从哪可以下载到一个用到时钟的适时显示的实例？

Question

rt
适时显示的意思是在不同的时候可以显示不同的内容，其他内容应该就是隐藏了
不知道能不能说的清楚，最近做毕设，很郁闷，对c#了解太少

Answer 1

是不是早某个时间一些控件隐藏，一些显示？用Timer就可以

Answer 2

private void timer1_tick(.......)
{
  timer.interval=10000;//10miao 
  TextBox t=new TextBox();
  t.Parent=this;
  t.left=100;
  t.right=200;
}
private void Form1_MouseDown(...........)
{
  timer1.start();
}
private void Form1_MouseUp(.....)
{
  timer1.Stop();
}

Answer 3

做作业！using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO;namespace WindowsApplication1
{
    public partial class Form1 : Form
    {
        /// <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.richTextBox1 = new System.Windows.Forms.RichTextBox();
            this.button1 = new System.Windows.Forms.Button();
            this.richTextBox2 = new System.Windows.Forms.RichTextBox();
            this.timer1 = new System.Windows.Forms.Timer(this.components);
            this.SuspendLayout();
            // 
            // richTextBox1
            // 
            this.richTextBox1.Location = new System.Drawing.Point(39, 32);
            this.richTextBox1.Name = "richTextBox1";
            this.richTextBox1.Size = new System.Drawing.Size(207, 64);
            this.richTextBox1.TabIndex = 0;
            this.richTextBox1.Text = "";
            // 
            // button1
            // 
            this.button1.Location = new System.Drawing.Point(100, 202);
            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);
            // 
            // richTextBox2
            // 
            this.richTextBox2.Location = new System.Drawing.Point(39, 102);
            this.richTextBox2.Name = "richTextBox2";
            this.richTextBox2.Size = new System.Drawing.Size(207, 64);
            this.richTextBox2.TabIndex = 2;
            this.richTextBox2.Text = "";
            // 
            // timer1
            // 
            this.timer1.Tick += new System.EventHandler(this.timer1_Tick);
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(292, 266);
            this.Controls.Add(this.richTextBox2);
            this.Controls.Add(this.button1);
            this.Controls.Add(this.richTextBox1);
            this.Name = "Form1";
            this.Text = "Form1";
            this.Load += new System.EventHandler(this.Form1_Load);
            this.ResumeLayout(false);        }        #endregion        private System.Windows.Forms.RichTextBox richTextBox1;
        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.RichTextBox richTextBox2;
        private System.Windows.Forms.Timer timer1;        public Form1()
        {
            InitializeComponent();
        }        private void timer1_Tick(object sender, EventArgs e)
        {
            timer1.Interval = 1000;
            if (richTextBox1.Visible ==true)
            {
                richTextBox1.Visible = false;
                richTextBox2.Visible = true;
            }
            else if (richTextBox2.Visible == true)
            {
                richTextBox1.Visible = true;
                richTextBox2.Visible = false;
            }        }        private void Form1_Load(object sender, EventArgs e)
        {
            richTextBox1.Visible = true;
            richTextBox2.Visible = false;            
        }        private void button1_Click(object sender, EventArgs e)
        {
            timer1.Start();
        }    }
}

Answer 4

这个是用MOUSE事件做的，如果是你要的结果，那么记得结贴using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
namespace WindowsApplication1
{
    public partial class Form1 : Form
    {
        /// <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.richTextBox1 = new System.Windows.Forms.RichTextBox();
            this.button1 = new System.Windows.Forms.Button();
            this.richTextBox2 = new System.Windows.Forms.RichTextBox();
            this.timer1 = new System.Windows.Forms.Timer(this.components);
            this.SuspendLayout();
            // 
            // richTextBox1
            // 
            this.richTextBox1.Location = new System.Drawing.Point(39, 32);
            this.richTextBox1.Name = "richTextBox1";
            this.richTextBox1.Size = new System.Drawing.Size(207, 64);
            this.richTextBox1.TabIndex = 0;
            this.richTextBox1.Text = "";
            // 
            // button1
            // 
            this.button1.Location = new System.Drawing.Point(100, 202);
            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);
            // 
            // richTextBox2
            // 
            this.richTextBox2.Location = new System.Drawing.Point(39, 102);
            this.richTextBox2.Name = "richTextBox2";
            this.richTextBox2.Size = new System.Drawing.Size(207, 64);
            this.richTextBox2.TabIndex = 2;
            this.richTextBox2.Text = "";
            // 
            // timer1
            // 
            this.timer1.Tick += new System.EventHandler(this.timer1_Tick);
            // 
            // Form1
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(292, 266);
            this.Controls.Add(this.richTextBox2);
            this.Controls.Add(this.button1);
            this.Controls.Add(this.richTextBox1);
            this.Name = "Form1";
            this.Text = "Form1";
            this.Load += new System.EventHandler(this.Form1_Load);
            this.MouseUp += new System.Windows.Forms.MouseEventHandler(this.Form1_MouseUp);
            this.MouseDown += new System.Windows.Forms.MouseEventHandler(this.Form1_MouseDown);
            this.ResumeLayout(false);        }        #endregion        private System.Windows.Forms.RichTextBox richTextBox1;
        private System.Windows.Forms.Button button1;
        private System.Windows.Forms.RichTextBox richTextBox2;
        private System.Windows.Forms.Timer timer1;        public Form1()
        {
            InitializeComponent();
        }        private void timer1_Tick(object sender, EventArgs e)
        {
            timer1.Interval = 1000;
            if (richTextBox1.Visible ==true)
            {
                richTextBox1.Visible = false;
                richTextBox2.Visible = true;
            }
            else if (richTextBox2.Visible == true)
            {
                richTextBox1.Visible = true;
                richTextBox2.Visible = false;
            }        }        private void Form1_Load(object sender, EventArgs e)
        {
            richTextBox1.Visible = true;
            richTextBox2.Visible = false;            
        }        private void button1_Click(object sender, EventArgs e)
        {        }        private void Form1_MouseDown(object sender, MouseEventArgs e)
        {
            timer1.Start();
        }        private void Form1_MouseUp(object sender, MouseEventArgs e)
        {
            timer1.Stop();
        }    }
}