播放MP3

播放背景音乐

上文来自：http://blog.csdn.net/henulwj/article/details/8977738

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.IO;
using System.Media;

namespace ListBox
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        //为了在两个方法中都能访问到
        List<string> list = new List<string>();
        string[] pathMusic = Directory.GetFiles("E:\\00", "*.mp3");

        private void Form1_Load(object sender, EventArgs e)
        {
            String[] path = Directory.GetFiles("E:\\00", "*.jpg");
             for ( int i = 0; i < path.Length; i++)
            {
                 //根据路径名获取文件名称
                 string fileName = Path.GetFileName(path[i]);
                 listBox1.Items.Add(fileName);

                 //将图片全路径添加到List泛型中；
                 list.Add(path[i]);
            }
            for(int i = 0; i < pathMusic.Length; i++)
            {
                string fileName = Path.GetFileName(pathMusic[i]);
                listBox1.Items.Add(fileName);
                list.Add(pathMusic[i]);
            }
        }

        private void listBox1_DoubleClick(object sender, EventArgs e)
        {
            //添加图片文件，需要添加全路径
            if (listBox1.SelectedItem.ToString().Contains(".jpg"))
            {
                pictureBox1.Image = Image.FromFile(list[listBox1.SelectedIndex]);
            }
            else if (listBox1.SelectedItem.ToString().Contains(".mp3"))
            {
                //SoundPlayer sp = new SoundPlayer();
                //sp.SoundLocation = list[listBox1.SelectedIndex];
                //sp.Play();

                axWindowsMediaPlayer1.URL = list[listBox1.SelectedIndex];
                axWindowsMediaPlayer1.Ctlcontrols.play();
            }
        }

        private void listBox1_Click(object sender, EventArgs e)
        {
            if(listBox1.SelectedItem.ToString().Contains(".jpg"))
            {
                pictureBox1.Image = Image.FromFile(list[listBox1.SelectedIndex]);
            }
            else if (listBox1.SelectedItem.ToString().Contains(".mp3"))
            {
                //SoundPlayer sp = new SoundPlayer();
                //sp.SoundLocation = list[listBox1.SelectedIndex];
                //sp.Play();
                //只能播放wmv格式

                //可播放MP3
                axWindowsMediaPlayer1.URL = list[listBox1.SelectedIndex];
                axWindowsMediaPlayer1.Ctlcontrols.play();
            }

        }
    }
}　

下面示例提供播放音乐的两种方法

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.IO;//使用Path
using System.Diagnostics;//使用进程

namespace 播放音乐
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            OpenFileDialog ofd = new OpenFileDialog();
            ofd.Title = "请打开音乐";
            ofd.InitialDirectory = @"E:\00";
            ofd.Multiselect = true;

            ofd.Filter = "音乐文件|*.mp3|所有文件|*.*";
            ofd.ShowDialog(); 

            //获得在文件夹中所有文件的全路径
            string[] path = ofd.FileNames;

            for(int i = 0; i < path.Length; i++)
            {
                listBox1.Items.Add(Path.GetFileName(path[i]));
                musicPath.Add(path[i]);
            }
        }

        List<string> musicPath = new List<string>();

        private void listBox1_DoubleClick(object sender, EventArgs e)
        {
            //使用Window Media Player播放音乐
            axWindowsMediaPlayer2.URL = musicPath[listBox1.SelectedIndex];
            axWindowsMediaPlayer2.Ctlcontrols.play();
        }

        private void button2_Click(object sender, EventArgs e)
        {
            if (listBox1.SelectedIndex == listBox1.Items.Count - 1)
            {
                listBox1.SelectedIndex = 0;
            }
            else
            {
                listBox1.SelectedIndex += 1;
                axWindowsMediaPlayer2.URL = musicPath[listBox1.SelectedIndex];
                axWindowsMediaPlayer2.Ctlcontrols.play();
            }

        }

        private void button3_Click(object sender, EventArgs e)
        {
            if (listBox1.SelectedIndex == 0)
            {
                listBox1.SelectedIndex = listBox1.Items.Count -1;
            }
            else
            {
                listBox1.SelectedIndex -= 1;
                axWindowsMediaPlayer2.URL = musicPath[listBox1.SelectedIndex];
                axWindowsMediaPlayer2.Ctlcontrols.play();
            }
        }

        private void listBox1_Click(object sender, EventArgs e)
        {
            //播放音乐的另一种方法
            //直接使用默认播放器打开音乐文件
            ProcessStartInfo psi = new ProcessStartInfo(musicPath[listBox1.SelectedIndex]);
            Process ps = new Process();
            ps.StartInfo = psi;
            ps.Start();
        }
    }
}