用windows media player 制作一個(gè)簡(jiǎn)單的的音樂(lè)播放器。
先把播放器的屬性設(shè)為null。

private void button5_Click(object sender, EventArgs e)//從本地添加歌曲按鈕 {OpenFileDialog of = new OpenFileDialog();//打開(kāi)文件對(duì)話框of.Filter = "(mp3,wav,mp4,mov,wmv,mpg)|*.mp3;*.wav;*.mp4;*.mov;*.wmv;*.mpg|all files|*.*";of.Multiselect = true;//多選文件DialogResult dr = of.ShowDialog();//彈出窗口if (dr.ToString() == "OK"){foreach (string music in of.FileNames)//迭代,用music 去遍歷filenames{listBox1.Items.Add(music.Split('\\')[music.Split('\\').Length - 1]);//本來(lái)是加入music會(huì)顯示絕對(duì)路徑，但用分割，得到最后一個(gè)歌曲名，遍歷得到所有歌曲}}}int i = 0;//用i和listBox1.SelectedIndex來(lái)控制該播放哪首歌,最后一首歌用listBox1.Items.Count;表示private void listBox1_DoubleClick(object sender, EventArgs e)//歌單列表雙擊播放{Player.URL = listBox1.SelectedItem.ToString();//播放器的地址在所添加listbox的選項(xiàng)Player.Ctlcontrols.play();//播放器播放i = listBox1.SelectedIndex;i++;}private void Form5_Load(object sender, EventArgs e)//加載出來(lái)是順序的狀態(tài){comboBox1.SelectedIndex = 2;//默認(rèn)順序播放}#region 點(diǎn)擊播放形式private void button1_Click(object sender, EventArgs e)//點(diǎn)擊播放鍵{if (listBox1.SelectedIndex >= 0){if (comboBox1.Text == "隨機(jī)"){Random r = new Random();i = r.Next(0, listBox1.Items.Count);listBox1.SelectedIndex = i;Player.URL = listBox1.SelectedItem.ToString();//播放器的地址在所添加listbox的選項(xiàng)Player.Ctlcontrols.play();//播放器播放}else if (comboBox1.Text == "順序播放")//順序播放{if (i < listBox1.Items.Count){listBox1.SelectedIndex = i;Player.URL = listBox1.SelectedItem.ToString();Player.Ctlcontrols.play();i++;}else{i = 0;listBox1.SelectedIndex = i;Player.URL = listBox1.SelectedItem.ToString();Player.Ctlcontrols.play();i++;}}else{Player.URL = listBox1.SelectedItem.ToString();Player.Ctlcontrols.play();//Player.URL = listBox1.SelectedItem.ToString();//Player.Ctlcontrols.play();//MessageBox.Show(""+listBox1.Items.Count);}}elseMessageBox.Show("請(qǐng)先添加歌曲");}#endregion#region damn//private void Player_StatusChange(object sender, EventArgs e)//{// if (comboBox1.Text == "單曲循環(huán)")// {// if ((int)Player.playState == 1)// {// //停頓2秒鐘再重新播放 // System.Threading.Thread.Sleep(2000);// //重新播放 // Player.Ctlcontrols.play();// }// }//}#endregion private void button2_Click(object sender, EventArgs e)//暫停鍵{Player.Ctlcontrols.pause();}#region 切換歌曲功能private void button3_Click(object sender, EventArgs e)//切換上一首歌的鍵{i = listBox1.SelectedIndex;if (i > 0){i--;listBox1.SelectedIndex = i;//上一首歌播放 Player.URL = listBox1.SelectedIndex.ToString();//獲取第幾個(gè)歌曲Player.URL = listBox1.SelectedItem.ToString();//要播的歌曲Player.Ctlcontrols.play();}else{//listBox1.SelectedIndex = listBox1.Items.Count;i = listBox1.Items.Count;i--;listBox1.SelectedIndex = i;Player.URL = listBox1.SelectedIndex.ToString();Player.URL = listBox1.SelectedItem.ToString();//Player.Ctlcontrols.play();}}private void button4_Click(object sender, EventArgs e)//切換下一首歌的鍵{i = listBox1.SelectedIndex;if (i < listBox1.Items.Count - 1)//!!!{i++;listBox1.SelectedIndex = i;Player.URL = listBox1.SelectedIndex.ToString();Player.URL = listBox1.SelectedItem.ToString();//Player.Ctlcontrols.play();}else{i = 0;listBox1.SelectedIndex = i;//如果列表選中的歌是最后一首歌，從第一首歌播放i++;Player.URL = listBox1.SelectedIndex.ToString();Player.URL = listBox1.SelectedItem.ToString();//Player.Ctlcontrols.play();}}#endregion#region 聲音功能private void button6_Click(object sender, EventArgs e){Player.settings.volume += 5;//5、設(shè)置靜音 播放器名稱.settings.mute = true;//取消靜音 播放器名稱.settings.mute = false;//6、聲音加大 播放器名稱.settings.volume += 5;//7、聲音減小 播放器名稱.settings.volume -= 5;}private void button7_Click(object sender, EventArgs e){Player.settings.volume -= 5;}private void button8_Click(object sender, EventArgs e){if (i % 2 == 0){Player.settings.mute = true;//設(shè)置靜音}else{Player.settings.mute = false;i++;}}#endregion#region 播放時(shí)間private void button9_Click(object sender, EventArgs e){Player.Ctlcontrols.fastForward();}#endregionprivate void button10_Click(object sender, EventArgs e){// 獲取當(dāng)前播放的時(shí)間double cp = Player.Ctlcontrols.currentPosition;// 后退10秒cp = cp - 10;if (cp <= 0)cp = 0;// 將時(shí)間賦值給播放器Player.Ctlcontrols.currentPosition = cp;}

就是好玩，歌還是能放的，不能實(shí)現(xiàn)歌播放完了自動(dòng)跳到下一首，但是點(diǎn)擊播放鍵是可以跳的，隨機(jī)也是。跳還是從第一首歌開(kāi)始跳。
總結(jié)：播放器是老師教的，顯然他沒(méi)教那么全，原因是基礎(chǔ)有限，許多方法，不能調(diào)用。但隨機(jī)播放和單曲循環(huán)在我的升級(jí)下，還有切換上一首，下一首，聲音的控制還是實(shí)現(xiàn)了。會(huì)將第三方控件引入到常規(guī)控件，和用代碼調(diào)用就行了。
如果當(dāng)作一個(gè)單純的好玩還是可以的，不能亂復(fù)制看不懂的代碼，要不然越搞越亂！！！

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