C#自制简易音乐播放器

ゞ浴缸里的玫瑰 2022-12-07 11:46 260阅读 0赞

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;
    using System.Media;
    
    namespace Demo08_MusicPlayer
    {
        public partial class PlayerForm : Form
        {
            public PlayerForm()
            {
                InitializeComponent();
            }
    
            // 音频文件存储序列
            List<string> listSongs = new List<string>();
    
            /// <summary>
            /// 从本地加载音频文件
            /// </summary>
            /// <param name="sender"></param>
            /// <param name="e"></param>
            private void btnOpen_Click(object sender, EventArgs e)
            {
                OpenFileDialog ofd = new OpenFileDialog();
                ofd.Title = "请选择音乐文件";
                ofd.InitialDirectory = @"D:\Aggregate_Data\Documents\My Music"; // 初始目录
                ofd.Multiselect = true; // 允许多选
                ofd.Filter = "音乐文件|*.wav|所有文件|*.*"; // 文件过滤
                ofd.ShowDialog();
    
                string[] path = ofd.FileNames; // 获取文件全路径
                for (int i = 0; i < path.Length; i++)
                {
                    // 将音乐文件的文件名加载到列表中
                    lstMenu.Items.Add(Path.GetFileName(path[i]));
                    listSongs.Add(path[i]); // 向音频序列中添加文件名
                }
            }
    
            SoundPlayer sp = new SoundPlayer(); // 音频播放器
    
            /// <summary>
            /// 双击播放指定音频
            /// </summary>
            /// <param name="sender"></param>
            /// <param name="e"></param>
            private void lstMenu_DoubleClick(object sender, EventArgs e)
            {
                sp.SoundLocation = listSongs[lstMenu.SelectedIndex]; // 被选中的下标
                this.mediaPlayer.URL = listSongs[lstMenu.SelectedIndex];
            }
    
            /// <summary>
            /// 上一曲
            /// </summary>
            /// <param name="sender"></param>
            /// <param name="e"></param>
            private void btnPrevious_Click(object sender, EventArgs e)
            {
                int index = lstMenu.SelectedIndex; // 获取正在播放的音乐的下标
                index--;
                if (index < 0)
                {
                    index = lstMenu.Items.Count - 1; // 最后一首歌曲
                }
                lstMenu.SelectedIndex = index; // 播放选中跟随歌曲切换移动
                sp.SoundLocation = listSongs[index];
                this.mediaPlayer.URL = listSongs[lstMenu.SelectedIndex];
            }
    
            /// <summary>
            /// 下一曲
            /// </summary>
            /// <param name="sender"></param>
            /// <param name="e"></param>
            private void btnNext_Click(object sender, EventArgs e)
            {
                int index = lstMenu.SelectedIndex; // 获取正在播放的音乐的下标
                index++;
                if (index == lstMenu.Items.Count)
                {
                    index = 0; // 第一首歌曲
                }
                lstMenu.SelectedIndex = index; // 播放选中跟随歌曲切换移动
                sp.SoundLocation = listSongs[index];
                this.mediaPlayer.URL = listSongs[lstMenu.SelectedIndex];
            }
    
        }
    }

运行示例：  
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