实例介绍
【实例简介】用C#写的闹钟小程序，可以自定义选择闹钟响铃时间以及响铃的音乐，可以实时查看闹钟响铃倒计时
【实例截图】
【核心代码】
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Media;
namespace AlarmClock
{
public partial class AlarmClock : Form
{
private bool BeginAlarm = false;
private DateTime AlarmTime;
private SoundPlayer AlarmBell;
private long CountDownTime;
public AlarmClock()
{
InitializeComponent();
}
private void Clock_Load(object sender, EventArgs e)
{
ToolTip testTip = new ToolTip();
testTip.IsBalloon = true;
testTip.SetToolTip(TestButton, "测试选择的音乐是否可用");
timer1.Interval = 1000;
timer1.Enabled = true;
this.AcceptButton = BeginButton;
PathBox.Text = Application.StartupPath.ToString() @"\Music\ring.wav";
}
private void Clock_FormClosing(object sender, FormClosingEventArgs e)
{
try
{
SystemSounds.Exclamation.Play();
}
catch { }
if (MessageBox.Show("请确认是否退出程序？", "提示", MessageBoxButtons.OKCancel, MessageBoxIcon.Question) == DialogResult.OK)
{
e.Cancel = false;
}
else
{
e.Cancel = true;
}
}
private void BeginButton_Click(object sender, EventArgs e)
{
if (TestButton.Text == "停止")
{
SystemSounds.Hand.Play();
MessageBox.Show("请先停止测试闹钟铃声！", "提示");
return;
}
if (Time3.Checked)
{
try
{
int hour = Convert.ToInt32(HourBox.Text.Trim());
int minute = Convert.ToInt32(MinuteBox.Text.Trim());
if (hour < 0 || hour > 23 || minute < 0 || minute > 60)
{
SystemSounds.Hand.Play();
MessageBox.Show("起床时间设置有误！", "警告");
return;
}
}
catch (Exception)
{
SystemSounds.Hand.Play();
MessageBox.Show("起床时间设置有误！", "警告");
return;
}
}
string AlarmTime1 = HourBox.Text.Trim() ":" MinuteBox.Text.Trim() ":" "00";
AlarmTime = DateTime.Parse(AlarmTime1);
if (DateTime.Compare(AlarmTime, DateTime.Now) > 0)
{
SystemSounds.Asterisk.Play();
MessageBox.Show("请务必测试闹钟铃声是否可用！", "提示");
BeginAlarm = true;
HourBox.Enabled = false;
MinuteBox.Enabled = false;
BeginButton.Visible = false;
SelectButton.Visible = false;
TestButton.Visible = false;
Time1.Visible = false;
Time2.Visible = false;
Time3.Visible = false;
StopButton.Visible = true;
Count_Down.Visible = true;
HourLabel.Visible = true;
MinuteLabel.Visible = true;
SecondLabel.Visible = true;
CountDown_Hour.Visible = true;
CountDown_Minute.Visible = true;
CountDown_Second.Visible = true;
}
else
{
SystemSounds.Hand.Play();
MessageBox.Show("起床时间小于当前时间！", "警告");
}
}
private void timer1_Tick(object sender, EventArgs e)
{
DateTime NowTime = DateTime.Now;
Now_Time.Text = NowTime.ToString();
if (BeginAlarm)
{
TimeSpan CountDown = AlarmTime - NowTime;
HourLabel.Text = CountDown.Hours.ToString();
MinuteLabel.Text = CountDown.Minutes.ToString();
SecondLabel.Text = CountDown.Seconds.ToString();
CountDownTime = CountDown.Hours * 3600 CountDown.Minutes * 60 CountDown.Seconds;
TimeLabel.Text = CountDownTime.ToString();
}
}
private void StopButton_Click(object sender, EventArgs e)
{
SystemSounds.Exclamation.Play();
if (MessageBox.Show("请确认是否结束倒计时？", "提示", MessageBoxButtons.OKCancel, MessageBoxIcon.Question) == DialogResult.OK)
{
BeginAlarm = false;
HourBox.Enabled = true;
MinuteBox.Enabled = true;
BeginButton.Visible = true;
SelectButton.Visible = true;
TestButton.Visible = true;
Time1.Visible = true;
Time2.Visible = true;
Time3.Visible = true;
StopButton.Visible = false;
Count_Down.Visible = false;
HourLabel.Visible = false;
MinuteLabel.Visible = false;
SecondLabel.Visible = false;
CountDown_Hour.Visible = false;
CountDown_Minute.Visible = false;
CountDown_Second.Visible = false;
HourLabel.Text = "0";
MinuteLabel.Text = "0";
SecondLabel.Text = "0";
CountDownTime = 1;
TimeLabel.Text = "000000";
}
}
private void PlayAlarmBell()
{
AlarmBell = new SoundPlayer();
AlarmBell.SoundLocation = PathBox.Text.Trim();
try
{
AlarmBell.PlayLooping();
DialogResult res = MessageBox.Show("起床啦！起床啦！起床啦！",
"提示");
if (res == DialogResult.OK)
{
AlarmBell.Stop();
AlarmBell.Dispose();
}
}
catch (Exception)
{
SystemSounds.Hand.Play();
MessageBox.Show("无效闹钟铃声！", "警告");
AlarmBell.Dispose();
}
}
private void TestAlarmBell()
{
if (TestButton.Text == "测试")
{
AlarmBell = new SoundPlayer();
AlarmBell.SoundLocation = PathBox.Text.Trim();
try
{
AlarmBell.PlayLooping();
TestButton.Text = "停止";
SelectButton.Enabled = false;
}
catch (Exception)
{
SystemSounds.Hand.Play();
MessageBox.Show("无效闹钟铃声！", "警告");
AlarmBell.Dispose();
TestButton.Text = "测试";
SelectButton.Enabled = true;
}
}
else
{
try
{
AlarmBell.Stop();
AlarmBell.Dispose();
}
catch (Exception)
{
SystemSounds.Hand.Play();
MessageBox.Show("未知错误！", "提示");
}
finally
{
TestButton.Text = "测试";
SelectButton.Enabled = true;
}
}
}
private void TestButton_Click(object sender, EventArgs e)
{
TestAlarmBell();
//SystemSounds.Asterisk.Play();
//SystemSounds.Beep.Play();
//SystemSounds.Exclamation.Play();
//SystemSounds.Hand.Play();
//SystemSounds.Question.Play();
}
private void SelectButton_Click(object sender, EventArgs e)
{
OpenFileDialog ofd = new OpenFileDialog();
ofd.InitialDirectory = @"F:\Alarm Clock\"; //默认打开目录
ofd.Filter = "铃声文件|*.wav"; //显示的文件类型
ofd.RestoreDirectory = true; //对话框记忆之前打开的目录
ofd.FilterIndex = 1; //文件类型的显示顺序
if (ofd.ShowDialog() == DialogResult.OK) //选中文件
{
string BellPath = ofd.FileName;
PathBox.Text = BellPath;
}
}
private void TimeLabel_TextChanged(object sender, EventArgs e)
{
if (CountDownTime <= 0)
{
BeginAlarm = false;
PlayAlarmBell();
HourBox.Enabled = true;
MinuteBox.Enabled = true;
BeginButton.Visible = true;
SelectButton.Visible = true;
TestButton.Visible = true;
Time1.Visible = true;
Time2.Visible = true;
Time3.Visible = true;
StopButton.Visible = false;
Count_Down.Visible = false;
HourLabel.Visible = false;
MinuteLabel.Visible = false;
SecondLabel.Visible = false;
CountDown_Hour.Visible = false;
CountDown_Minute.Visible = false;
CountDown_Second.Visible = false;
HourLabel.Text = "0";
MinuteLabel.Text = "0";
SecondLabel.Text = "0";
CountDownTime = 1;
TimeLabel.Text = "000000";
}
}
private void Time1_CheckedChanged(object sender, EventArgs e)
{
HourBox.Text = "13";
MinuteBox.Text = "30";
HourBox.Enabled = false;
MinuteBox.Enabled = false;
}
private void Time2_CheckedChanged(object sender, EventArgs e)
{
HourBox.Text = "14";
MinuteBox.Text = "00";
HourBox.Enabled = false;
MinuteBox.Enabled = false;
}
private void Time3_CheckedChanged(object sender, EventArgs e)
{
HourBox.Enabled = true;
MinuteBox.Enabled = true;
}
}
}
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