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;

 using System.IO;

 namespace WindowsFormsApplication1

 {

     public partial class Form1 : Form

     {

         public Form1()

         {

             InitializeComponent();

         }

         private void Form1_Load(object sender, EventArgs e)

         {

         }

         List<string> listSongs = new List<string>();//定义存储歌名的路径泛型变量

         private void button5_Click(object sender, EventArgs e)

         {

             OpenFileDialog ofd = new OpenFileDialog();

             ofd.Title = "请选择音频文件";

             ofd.InitialDirectory =@"F:\wav_music";

             ofd.Filter="音频文件|*.wav|所有文件|*.*";

             ofd.Multiselect=true;//多选设置

             ofd.ShowDialog();

             string[] path = ofd.FileNames;//获取音频文件的全路径

             for (int i = ; i < path.Length; i++)

             {

                 listBox1.Items.Add(Path.GetFileName(path[i]));//将获取到的文件路径截取文件名并添加到listbox中

                 listSongs.Add(path[i]);//将路径添加到list集合当中

             }

         }

         /// <summary>

         /// 双击播放音乐方法。

         /// </summary>

         /// <param name="sender"></param>

         /// <param name="e"></param>

         private void listBox1_DoubleClick(object sender, EventArgs e)

         {

             SoundPlayer sp = new SoundPlayer();//

             sp.SoundLocation = listSongs[listBox1.SelectedIndex];

             sp.Play();

         }

         /// <summary>

         /// 播放下一首

         /// </summary>

         /// <param name="sender"></param>

         /// <param name="e"></param>

         private void button4_Click(object sender, EventArgs e)

         {

             //获取当前所选定的音乐项

             int index = listBox1.SelectedIndex;

             index++;

             SoundPlayer sp = new SoundPlayer();

             if (index ==listSongs.Count)

             {

                 index = ;

             }

             listBox1.SelectedIndex = index;//将索引重新赋值给listbox选定。

             sp.SoundLocation = listSongs[index];

             sp.Play();

         }

         /// <summary>

         /// 播放上一首

         /// </summary>

         /// <param name="sender"></param>

         /// <param name="e"></param>

         private void button2_Click(object sender, EventArgs e)

         {

             //获取当前所选定的音乐项

             int index = listBox1.SelectedIndex;

             index--;

             SoundPlayer sp = new SoundPlayer();

             if (index == )

             {

                 index = listSongs.Count - ;

             }

             listBox1.SelectedIndex = index;

             sp.SoundLocation = listSongs[index];

             sp.Play();

         }

     }

 }