播放器代码

先从工具箱->右键，组件，选择项->com组件->wmp

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;

namespace 播放器
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        private void btnPlay_Click(object sender, EventArgs e)
        {
            //playState判断播放器状态，取值范围是枚举类型。
            if (musicPlayer.playState == WMPLib.WMPPlayState.wmppsPaused||musicPlayer.playState == WMPLib.WMPPlayState.wmppsStopped
                || musicPlayer.playState == WMPLib.WMPPlayState.wmppsReady)
            {
                musicPlayer.Ctlcontrols.play();
                btnPlay.Text = "暂停";
            }
            else
            {
                musicPlayer.Ctlcontrols.pause();
                btnPlay.Text = "播放";
            }
        }

        private void btnStop_Click(object sender, EventArgs e)
        {
            musicPlayer.Ctlcontrols.stop();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            musicPlayer.settings.autoStart = false;
            musicPlayer.URL = @"C:\Users\jjw\Desktop\图片\video\004.mp4";
        }

        List<string> list = new List<string>();
        private void button1_Click(object sender, EventArgs e)
        {
            OpenFileDialog ofd = new OpenFileDialog();
            ofd.InitialDirectory = @"C:\Users\jjw\Desktop\图片\video";
            ofd.Filter = "所有文件|*.*|视频文件|*.mp4";
            ofd.Multiselect = true;
            ofd.ShowDialog();

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

        private void listBox1_DoubleClick(object sender, EventArgs e)
        {
            if (listBox1.SelectedIndex == -1)
            {
                MessageBox.Show("没哟歌曲");
                return;
            }
            musicPlayer.URL = list[listBox1.SelectedIndex];
            musicPlayer.Ctlcontrols.play();
        }
    }
}