如何用c#做壹個秒表

由於目前用到了C#的有關知識，但之前沒有C#的基礎，所以趁著機會正好學習學習。

本篇博文，記錄下利用C#實現壹個簡單的秒表計時器，基本界面如下圖。

功能說明：點擊“開始”開始計時，點擊“暫停”暫停計時，點擊“”停止“”停止計時，再點擊“開始”，重新開始計時。

首先，我們在窗體設計窗口畫出該界面，由1個Label，3個button構成。雙擊按鈕添加事件。

核心部分是用秒表對象Stopwatch和時鐘Timer實現的。

程序源代碼如下：

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.Diagnostics;

namespace Ch04Ex04

{

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent();

}

Timer time = new Timer();

Stopwatch sw; //秒表對象

TimeSpan ts;

static int count = 1;

private void button1_Click(object sender, EventArgs e)

{

//開始按鈕

button2.Enabled = true;

button3.Enabled = true;

if(button2.Text == "繼續") //開始後將繼續按鈕重置為暫停

button2.Text = "暫停";

sw = new Stopwatch();

time.Tick += new EventHandler(time_Tick); ?//時鐘觸發信號

time.Interval = 1;

sw.Start();

time.Start();

}

void time_Tick(object sender, EventArgs e)

{

ts = sw.Elapsed;

label1.Text = string.Format("{0}:{1}:{2}:{3}", ts.Hours, ts.Minutes, ts.Seconds,ts.Milliseconds/10);

}

private void button3_Click(object sender, EventArgs e)

{

//停止時間按鈕

sw.Stop();

time.Stop();

label1.Text = string.Format("{0}:{1}:{2}:{3}", 0, 0, 0, 0);

}

private void Form1_Load(object sender, EventArgs e)

{

button2.Enabled = false;

button3.Enabled = false;

}

private void button2_Click(object sender, EventArgs e)

{

if (button2.Text == "暫停")

{

//暫停事件按鈕

button2.Text = "繼續";

sw.Stop();

time.Stop();

}

else if (button2.Text == "繼續")

{

//繼續事件

button2.Text = "暫停";

sw.Start();

time.Start();

}

}

}

}

秒表運行結果如圖所示。

下壹步工作：在左下方添加壹個label，實驗多次暫停的功能，即能保存秒表的多個中間結果，如記錄多名同學的長跑成績的時候，暫停按鈕只是記錄到達終點的同學的成績，計時還在繼續，這個功能不難實現，給自己也給各位壹個動手的余地。

-------------------------------------------------------------------------------------------------------

以下是窗體設計器自動生成的代碼，輔助參考。

#region Windows 窗體設計器生成的代碼

/// <summary>

/// 設計器支持所需的方法 - 不要

/// 使用代碼編輯器修改此方法的內容。

/// </summary>

private void InitializeComponent()

{

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

this.button3 = new System.Windows.Forms.Button();

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

this.button2 = new System.Windows.Forms.Button();

this.SuspendLayout();

//

// button1

//

this.button1.Location = new System.Drawing.Point(204, 78);

this.button1.Name = "button1";

this.button1.Size = new System.Drawing.Size(38, 23);

this.button1.TabIndex = 0;

this.button1.Text = "開始";

this.button1.UseVisualStyleBackColor = true;

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

//

// button3

//

this.button3.Location = new System.Drawing.Point(205, 163);

this.button3.Name = "button3";

this.button3.Size = new System.Drawing.Size(37, 23);

this.button3.TabIndex = 2;

this.button3.Text = "停止";

this.button3.UseVisualStyleBackColor = true;

this.button3.Click += new System.EventHandler(this.button3_Click);

//

// label1

//

this.label1.BackColor = System.Drawing.Color.FromArgb(((int)(((byte)(224)))), ((int)(((byte)(224)))), ((int)(((byte)(224)))));

this.label1.Font = new System.Drawing.Font("宋體", 24F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(134)));

this.label1.Location = new System.Drawing.Point(30, 33);

this.label1.Name = "label1";

this.label1.Size = new System.Drawing.Size(202, 42);

this.label1.TabIndex = 3;

this.label1.Text = "0:0:0:0";

//

// button2

//

this.button2.Location = new System.Drawing.Point(205, 122);

this.button2.Name = "button2";

this.button2.Size = new System.Drawing.Size(38, 23);

this.button2.TabIndex = 4;

this.button2.Text = "暫停";

this.button2.UseVisualStyleBackColor = true;

this.button2.Click += new System.EventHandler(this.button2_Click);

//

// Form1

//

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

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

this.ClientSize = new System.Drawing.Size(284, 262);

this.Controls.Add(this.button2);

this.Controls.Add(this.label1);

this.Controls.Add(this.button3);

this.Controls.Add(this.button1);

this.Name = "Form1";

this.RightToLeftLayout = true;

this.Text = "秒表";

this.Load += new System.EventHandler(this.Form1_Load);

this.ResumeLayout(false);

}

#endregion