C#（自制简单音乐播放器源码）
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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 MusicPlayer { public partial class Form1 : Form { public Form1() { InitializeComponent(); } string[] musicPath = new string[10000]; //用于保存歌曲目录 int musicCount = 0; private void Form1_Load(object sender, EventArgs e) { myPlyer.BeginInit(); //初始化 myPlyer.settings.autoStart = true; //自动播放 myPlyer.settings.setMode("shuffle", false); //顺序播放 myPlyer.settings.enableErrorDialogs = true; myPlyer.settings.balance = 0; myPlyer.settings.mute = false; myPlyer.settings.volume = 100; //声音设为最大 btnBack.Enabled = false; //声音不对 btnForward.Enabled = false; //声音不对 btnBE.Enabled = false; //无法暂停和开始 ExitToolStripMenuItem.Enabled = false; //无法退出 ReplayToolStripMenuItem.Enabled = false; //无法单曲循环 if (File.Exists("listbox.txt")) //如果存在播放列表，那么加载播放列表 { StreamReader reader = new StreamReader("listbox.txt"); try { while (reader.Peek() != -1) { string filepath = reader.ReadLine(); if (File.Exists(filepath)) { musicPath[musicCount++] = filepath; string filename = Path.GetFileName(filepath); listBox1.Items.Add(filename); //listbox用来显示歌曲名 myPlyer.currentPlaylist.insertItem(myPlyer.currentPlaylist.count, myPlyer.newMedia(filepath)); } } listBox1.SelectedIndex = 0; } catch (Exception) { listBox1.SelectedIndex = -1; MessageBox.Show("加载播放列表失败!", "提示", MessageBoxButtons.OK, MessageBoxIcon.Error); } finally { reader.Close(); } } } private void OpenToolStripMenuItem_Click(object sender, EventArgs e) //打开音乐文件，但不加入到播放列表中 { DialogResult dr = openFileDialog1.ShowDialog(); if (dr == DialogResult.OK) { myPlyer.URL = openFileDialog1.FileName; } } private void ExitToolStripMenuItem_Click(object sender, EventArgs e) //结束程序，但为什么不起作用？而共享此动作的btnExit却有作用？ { myPlyer.Ctlcontrols.stop(); myPlyer.close(); Application.Exit(); } private void AddSingleToolStripMenuItem_Click(object sender, EventArgs e) //添加单首歌曲到播放列表中,"添加"按钮共享此事件 { DialogResult dr = openFileDialog1.ShowDialog(); if (dr == DialogResult.OK) { string filepath = openFileDialog1.FileName; string filename = Path.GetFileName(filepath); listBox1.Items.Add(filename); musicPath[musicCount++] = filepath; myPlyer.currentPlaylist.insertItem(myPlyer.currentPlaylist.count,myPlyer.newMedia(filepath)); } } private void AddMoreToolStripMenuItem_Click(object sender, EventArgs e) //添加选中的文件夹中的mp3文件到播放列表中 { DialogResult dr = folderBrowserDialog1.ShowDialog(); if (dr == DialogResult.OK) { string[] filepath = Directory.GetFiles(folderBrowserDialog1.SelectedPath); foreach (string s in filepath) { if (Path.GetExtension(s) == ".mp3") { string filename = Path.GetFileName(s); listBox1.Items.Add(filename); musicPath[musicCount++] = s; myPlyer.currentPlaylist.insertItem(myPlyer.currentPlaylist.count, myPlyer.newMedia(s)); } } } } private void listBox1_DoubleClick(object sender, EventArgs e) //播放列表中选中的歌曲,随机播放状态下不起作用 { int j = listBox1.SelectedIndex; if(listBox1.Items.Count>0) { myPlyer.Ctlcontrols.playItem(myPlyer.currentPlaylist.get_Item(j)); } } private void Form1_FormClosing(object sender, FormClosingEventArgs e) //退出程序的动作 { myPlyer.Ctlcontrols.stop(); myPlyer.close(); //关闭播放器 StreamWriter writer = new StreamWriter("listbox.txt", false, Encoding.Unicode); //保存播放列表 for (int i = 0; i <=musicCount-1; i++) { if (musicPath[i] != string.Empty) { writer.WriteLine(musicPath[i]); } } writer.Close(); } private void axWindowsMediaPlayer1_PlayStateChange(object sender, AxWMPLib._WMPOCXEvents_PlayStateChangeEvent e) //显示播放状态 { if (myPlyer.playState == WMPLib.WMPPlayState.wmppsPlaying) { label1.Text = "正在播放 " + myPlyer.currentMedia.sourceURL+" "+myPlyer.currentMedia.durationString; string s = myPlyer.currentMedia.sourceURL; for (int i = 0; i < myPlyer.currentPlaylist.count; i++) { if (listBox1.Items[i].ToString() == Path.GetFileName(s)) { listBox1.SelectedIndex = i; break; } } } if (myPlyer.playState == WMPLib.WMPPlayState.wmppsBuffering) { label1.Text = "正在缓冲 " + myPlyer.currentMedia.sourceURL; } if (myPlyer.playState == WMPLib.WMPPlayState.wmppsPaused) { label1.Text = "暂停播放 " + myPlyer.currentMedia.sourceURL; } if (myPlyer.playState == WMPLib.WMPPlayState.wmppsWaiting) { label1.Text = "正在等待"; } if (myPlyer.playState == WMPLib.WMPPlayState.wmppsStopped) { label1.Text = "播放停止"; } if (myPlyer.playState == WMPLib.WMPPlayState.wmppsReady) { label1.Text = "准备就绪"; } if (myPlyer.playState == WMPLib.WMPPlayState.wmppsScanForward) { label1.Text = "正在快进 " + myPlyer.currentMedia.sourceURL; } if (myPlyer.playState == WMPLib.WMPPlayState.wmppsScanReverse) { label1.Text = "正在快退 " + myPlyer.currentMedia.sourceURL; } } private void btnBE_Click(object sender, EventArgs e) //暂停/开始,不起作用 { if (myPlyer.playState == WMPLib.WMPPlayState.wmppsPlaying) { myPlyer.Ctlcontrols.pause(); } if (myPlyer.playState == WMPLib.WMPPlayState.wmppsPaused) { myPlyer.Ctlcontrols.play(); } } private void btnStop_Click(object sender, EventArgs e) //停止播放 { myPlyer.Ctlcontrols.stop(); } private void btnSlient_Click(object sender, EventArgs e) //静音 { if (myPlyer.settings.mute == false) { myPlyer.settings.mute = true; } else { myPlyer.settings.mute = false; } } private void btnBack_Click(object sender, EventArgs e) //快退,声音不对 { if (myPlyer.playState == WMPLib.WMPPlayState.wmppsPlaying) { myPlyer.Ctlcontrols.fastReverse(); } } private void btnForward_Click(object sender, EventArgs e) //快进,声音不对 { if (myPlyer.playState == WMPLib.WMPPlayState.wmppsPlaying) { myPlyer.Ctlcontrols.fastForward(); } } private void btnPre_Click(object sender, EventArgs e) //上一曲 { if (listBox1.SelectedIndex != 0) { myPlyer.Ctlcontrols.previous(); } } private void btnNext_Click(object sender, EventArgs e) //下一曲 { if (listBox1.SelectedIndex != listBox1.Items.Count - 1) { myPlyer.Ctlcontrols.next(); } } private void btnPlay_Click(object sender, EventArgs e) //双击播放列表中选中的歌曲 { if(listBox1.Items.Count>0&&listBox1.SelectedIndex>=0) { myPlyer.Ctlcontrols.playItem(myPlyer.currentPlaylist.get_Item(listBox1.SelectedIndex)); } } private void btRemove_Click(object sender, EventArgs e) //将选中的歌曲移出播放列表 { int i = listBox1.SelectedIndex; for (int j = 0; j < musicCount; j++) { if (Path.GetFileName(musicPath[j]) == listBox1.Items[i].ToString()) { musicPath[j] =""; } } if (listBox1.Items.Count > 0) { listBox1.Items.RemoveAt(i); myPlyer.currentPlaylist.removeItem(myPlyer.currentPlaylist.get_Item(i)); } if (i == listBox1.Items.Count) { listBox1.SelectedIndex = listBox1.Items.Count-1; } else { listBox1.SelectedIndex = i; } } private void btnDelete_Click(object sender, EventArgs e) //同上，并删除本地的音乐文件 { if (MessageBox.Show("确定要删除文件吗？", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Information) == DialogResult.Yes) { int i = listBox1.SelectedIndex; string s = myPlyer.currentPlaylist.get_Item(i).sourceURL; for (int j = 0; j < musicCount; j++) { if (Path.GetFileName(musicPath[j]) == listBox1.Items[i].ToString()) { musicPath[j] =""; } } if (listBox1.Items.Count > 0) { listBox1.Items.RemoveAt(i); myPlyer.currentPlaylist.removeItem(myPlyer.currentPlaylist.get_Item(i)); } if (i == listBox1.Items.Count) { listBox1.SelectedIndex = listBox1.Items.Count - 1; } else { listBox1.SelectedIndex = i; } try { File.Delete(s); } catch (Exception) { MessageBox.Show("删除文件失败!", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information); } } } private void delAllToolStripMenuItem_Click(object sender, EventArgs e) //清空播放列表 { myPlyer.Ctlcontrols.stop(); //先停止播放器 listBox1.Items.Clear(); //清空listbox myPlyer.currentPlaylist.clear(); //清空播放列表 for (int j = 0; j < musicCount; j++) { musicPath[j] = ""; } } private void Form1_KeyPress(object sender, KeyPressEventArgs e) { if (char.Equals(e.KeyChar, ' ')) { if (myPlyer.playState == WMPLib.WMPPlayState.wmppsPlaying) { myPlyer.Ctlcontrols.pause(); } } } private void SToolStripMenuItem_Click(object sender, EventArgs e) //顺序播放,默认 { myPlyer.settings.playCount = 1; myPlyer.currentPlaylist.clear(); for(int j=0;j<musicCount;j++) { if(musicPath[j]!=string.Empty) { myPlyer.currentPlaylist.insertItem(myPlyer.currentPlaylist.count,myPlyer.newMedia(musicPath[j])); } } myPlyer.settings.setMode("shuffle", false); myPlyer.Ctlcontrols.playItem(myPlyer.currentPlaylist.get_Item(0)); } private void ReplayToolStripMenuItem_Click(object sender, EventArgs e) //单曲循环 { myPlyer.settings.playCount = 1000; } private void RandomToolStripMenuItem_Click(object sender, EventArgs e) //随机播放,重新建立当前播放列表 { myPlyer.settings.playCount = 1; myPlyer.Ctlcontrols.stop(); myPlyer.currentPlaylist.clear(); Random rd = new Random(DateTime.Now.Millisecond); for (int i = 0; i < 1000; i++) { int j = rd.Next(0,musicCount - 1); if (musicPath[j] != string.Empty) { myPlyer.currentPlaylist.insertItem(myPlyer.currentPlaylist.count, myPlyer.newMedia(musicPath[j])); } } myPlyer.Ctlcontrols.playItem(myPlyer.currentPlaylist.get_Item(0)); } } } （发现一个Bug，以下是修复完成后的结果） 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 MusicPlayer { public partial class Form1 : Form { public Form1() { InitializeComponent(); } string[] musicPath = new string[10000]; //用于保存歌曲目录 int musicCount = 0; private void Form1_Load(object sender, EventArgs e) { myPlyer.BeginInit(); //初始化 myPlyer.settings.autoStart = true; //自动播放 myPlyer.settings.setMode("shuffle", false); //顺序播放 myPlyer.settings.enableErrorDialogs = true; myPlyer.settings.balance = 0; myPlyer.settings.mute = false; myPlyer.settings.volume = 100; //声音设为最大 btnBack.Enabled = false; //声音不对 btnForward.Enabled = false; //声音不对 btnBE.Enabled = false; //无法暂停和开始 ExitToolStripMenuItem.Enabled = false; //无法退出 ReplayToolStripMenuItem.Enabled = false; //无法单曲循环 if (File.Exists("listbox.txt")) //如果存在播放列表，那么加载播放列表 { StreamReader reader = new StreamReader("listbox.txt"); try { while (reader.Peek() != -1) { string filepath = reader.ReadLine(); if (File.Exists(filepath)) { musicPath[musicCount++] = filepath; string filename = Path.GetFileName(filepath); listBox1.Items.Add(filename); //listbox用来显示歌曲名 myPlyer.currentPlaylist.insertItem(myPlyer.currentPlaylist.count, myPlyer.newMedia(filepath)); } } listBox1.SelectedIndex = 0; } catch (Exception) { listBox1.SelectedIndex = -1; MessageBox.Show("加载播放列表失败!", "提示", MessageBoxButtons.OK, MessageBoxIcon.Error); } finally { reader.Close(); } } } private void OpenToolStripMenuItem_Click(object sender, EventArgs e) //打开音乐文件，但不加入到播放列表中 { DialogResult dr = openFileDialog1.ShowDialog(); if (dr == DialogResult.OK) { myPlyer.URL = openFileDialog1.FileName; } } private void ExitToolStripMenuItem_Click(object sender, EventArgs e) //结束程序，但为什么不起作用？而共享此动作的btnExit却有作用？ { myPlyer.Ctlcontrols.stop(); myPlyer.close(); Application.Exit(); } private void AddSingleToolStripMenuItem_Click(object sender, EventArgs e) //添加单首歌曲到播放列表中,"添加"按钮共享此事件 { DialogResult dr = openFileDialog1.ShowDialog(); if (dr == DialogResult.OK) { string filepath = openFileDialog1.FileName; string filename = Path.GetFileName(filepath); listBox1.Items.Add(filename); musicPath[musicCount++] = filepath; myPlyer.currentPlaylist.insertItem(myPlyer.currentPlaylist.count,myPlyer.newMedia(filepath)); } } private void AddMoreToolStripMenuItem_Click(object sender, EventArgs e) //添加选中的文件夹中的mp3文件到播放列表中 { DialogResult dr = folderBrowserDialog1.ShowDialog(); if (dr == DialogResult.OK) { string[] filepath = Directory.GetFiles(folderBrowserDialog1.SelectedPath); foreach (string s in filepath) { if (Path.GetExtension(s) == ".mp3") { string filename = Path.GetFileName(s); listBox1.Items.Add(filename); musicPath[musicCount++] = s; myPlyer.currentPlaylist.insertItem(myPlyer.currentPlaylist.count, myPlyer.newMedia(s)); } } } } private void listBox1_DoubleClick(object sender, EventArgs e) //播放列表中选中的歌曲,随机播放状态下不起作用 { int j = listBox1.SelectedIndex; if(listBox1.Items.Count>0) { myPlyer.Ctlcontrols.playItem(myPlyer.currentPlaylist.get_Item(j)); } } private void Form1_FormClosing(object sender, FormClosingEventArgs e) //退出程序的动作 { myPlyer.Ctlcontrols.stop(); myPlyer.close(); //关闭播放器 StreamWriter writer = new StreamWriter("listbox.txt", false, Encoding.Unicode); //保存播放列表 for (int i = 0; i <=musicCount-1; i++) { if (musicPath[i] != string.Empty) { writer.WriteLine(musicPath[i]); } } writer.Close(); } private void axWindowsMediaPlayer1_PlayStateChange(object sender, AxWMPLib._WMPOCXEvents_PlayStateChangeEvent e) //显示播放状态 { if (myPlyer.playState == WMPLib.WMPPlayState.wmppsPlaying) { label1.Text = "正在播放 " + myPlyer.currentMedia.sourceURL+" "+myPlyer.currentMedia.durationString; string s = myPlyer.currentMedia.sourceURL; for (int i = 0; i < myPlyer.currentPlaylist.count; i++) { if (listBox1.Items[i].ToString() == Path.GetFileName(s)) { listBox1.SelectedIndex = i; break; } } } if (myPlyer.playState == WMPLib.WMPPlayState.wmppsBuffering) { label1.Text = "正在缓冲 " + myPlyer.currentMedia.sourceURL; } if (myPlyer.playState == WMPLib.WMPPlayState.wmppsPaused) { label1.Text = "暂停播放 " + myPlyer.currentMedia.sourceURL; } if (myPlyer.playState == WMPLib.WMPPlayState.wmppsWaiting) { label1.Text = "正在等待"; } if (myPlyer.playState == WMPLib.WMPPlayState.wmppsStopped) { label1.Text = "播放停止"; } if (myPlyer.playState == WMPLib.WMPPlayState.wmppsReady) { label1.Text = "准备就绪"; } if (myPlyer.playState == WMPLib.WMPPlayState.wmppsScanForward) { label1.Text = "正在快进 " + myPlyer.currentMedia.sourceURL; } if (myPlyer.playState == WMPLib.WMPPlayState.wmppsScanReverse) { label1.Text = "正在快退 " + myPlyer.currentMedia.sourceURL; } } private void btnBE_Click(object sender, EventArgs e) //暂停/开始,不起作用 { if (myPlyer.playState == WMPLib.WMPPlayState.wmppsPlaying) { myPlyer.Ctlcontrols.pause(); } if (myPlyer.playState == WMPLib.WMPPlayState.wmppsPaused) { myPlyer.Ctlcontrols.play(); } } private void btnStop_Click(object sender, EventArgs e) //停止播放 { myPlyer.Ctlcontrols.stop(); } private void btnSlient_Click(object sender, EventArgs e) //静音 { if (myPlyer.settings.mute == false) { myPlyer.settings.mute = true; } else { myPlyer.settings.mute = false; } } private void btnBack_Click(object sender, EventArgs e) //快退,声音不对 { if (myPlyer.playState == WMPLib.WMPPlayState.wmppsPlaying) { myPlyer.Ctlcontrols.fastReverse(); } } private void btnForward_Click(object sender, EventArgs e) //快进,声音不对 { if (myPlyer.playState == WMPLib.WMPPlayState.wmppsPlaying) { myPlyer.Ctlcontrols.fastForward(); } } private void btnPre_Click(object sender, EventArgs e) //上一曲 { if (listBox1.SelectedIndex != 0) { myPlyer.Ctlcontrols.previous(); } } private void btnNext_Click(object sender, EventArgs e) //下一曲 { if (listBox1.SelectedIndex != listBox1.Items.Count - 1) { myPlyer.Ctlcontrols.next(); } } private void btnPlay_Click(object sender, EventArgs e) //双击播放列表中选中的歌曲 { if(listBox1.Items.Count>0&&listBox1.SelectedIndex>=0) { myPlyer.Ctlcontrols.playItem(myPlyer.currentPlaylist.get_Item(listBox1.SelectedIndex)); } } private void btRemove_Click(object sender, EventArgs e) //将选中的歌曲移出播放列表 { int i = listBox1.SelectedIndex; for (int j = 0; j < musicCount; j++) { if (Path.GetFileName(musicPath[j]) == listBox1.Items[i].ToString()) { musicPath[j] =""; } } if (listBox1.Items.Count > 0) { for (int j = 0; j < myPlyer.currentPlaylist.count; j++) { if (listBox1.Items[i].ToString() == Path.GetFileName(myPlyer.currentPlaylist.get_Item(j).sourceURL)) myPlyer.currentPlaylist.removeItem(myPlyer.currentPlaylist.get_Item(j)); } listBox1.Items.RemoveAt(i); } if (i == listBox1.Items.Count) { listBox1.SelectedIndex = listBox1.Items.Count-1; } else { listBox1.SelectedIndex = i; } } private void btnDelete_Click(object sender, EventArgs e) //同上，并删除本地的音乐文件 { if (MessageBox.Show("确定要删除文件吗？", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Information) == DialogResult.Yes) { int i = listBox1.SelectedIndex; string s = myPlyer.currentPlaylist.get_Item(i).sourceURL; for (int j = 0; j < musicCount; j++) { if (Path.GetFileName(musicPath[j]) == listBox1.Items[i].ToString()) { musicPath[j] =""; } } if (listBox1.Items.Count > 0) { for (int j = 0; j < myPlyer.currentPlaylist.count; j++) { if (listBox1.Items[i].ToString() == Path.GetFileName(myPlyer.currentPlaylist.get_Item(j).sourceURL)) myPlyer.currentPlaylist.removeItem(myPlyer.currentPlaylist.get_Item(j)); } listBox1.Items.RemoveAt(i); } if (i == listBox1.Items.Count) { listBox1.SelectedIndex = listBox1.Items.Count - 1; } else { listBox1.SelectedIndex = i; } try { File.Delete(s); } catch (Exception) { MessageBox.Show("删除文件失败!", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information); } } } private void delAllToolStripMenuItem_Click(object sender, EventArgs e) //清空播放列表 { myPlyer.Ctlcontrols.stop(); //先停止播放器 listBox1.Items.Clear(); //清空listbox myPlyer.currentPlaylist.clear(); //清空播放列表 for (int j = 0; j < musicCount; j++) { musicPath[j] = ""; } } private void Form1_KeyPress(object sender, KeyPressEventArgs e) { if (char.Equals(e.KeyChar, ' ')) { if (myPlyer.playState == WMPLib.WMPPlayState.wmppsPlaying) { myPlyer.Ctlcontrols.pause(); } } } private void SToolStripMenuItem_Click(object sender, EventArgs e) //顺序播放,默认 { myPlyer.settings.playCount = 1; myPlyer.currentPlaylist.clear(); for(int j=0;j<musicCount;j++) { if(musicPath[j]!=string.Empty) { myPlyer.currentPlaylist.insertItem(myPlyer.currentPlaylist.count,myPlyer.newMedia(musicPath[j])); } } myPlyer.settings.setMode("shuffle", false); myPlyer.Ctlcontrols.playItem(myPlyer.currentPlaylist.get_Item(0)); } private void ReplayToolStripMenuItem_Click(object sender, EventArgs e) //单曲循环 { myPlyer.settings.playCount = 1000; } private void RandomToolStripMenuItem_Click(object sender, EventArgs e) //随机播放,重新建立当前播放列表 { myPlyer.settings.playCount = 1; myPlyer.Ctlcontrols.stop(); myPlyer.currentPlaylist.clear(); Random rd = new Random(DateTime.Now.Millisecond); for (int i = 0; i < 1000; i++) { int j = rd.Next(0,musicCount - 1); if (musicPath[j] != string.Empty) { myPlyer.currentPlaylist.insertItem(myPlyer.currentPlaylist.count, myPlyer.newMedia(musicPath[j])); } } myPlyer.Ctlcontrols.playItem(myPlyer.currentPlaylist.get_Item(0)); } } } |
