SoundPlayer的使用示例

客官°小女子只卖身不卖艺 2022-04-23 13:30 143阅读 0赞

开发一个简易的音乐播放器。实现选择音乐文件，双击播放，上一曲，下一曲等功能。

using System;
    using System.Collections.Generic;
    using System.IO;
    using System.Media;
    using System.Windows.Forms;
    
    namespace WindowsFormsApp3
    {
        public partial class Form1 : Form
        {
            List<string> songs = new List<string>();
            SoundPlayer song = new SoundPlayer();
    
            public Form1()
            {
                InitializeComponent();
            }
    
            //载入文件
            private void button1_Click(object sender, EventArgs e)
            {
                songs.Clear();
                listBox1.Items.Clear();
    
                OpenFileDialog openFile = new OpenFileDialog();
                openFile.InitialDirectory = @"E:\test";
                openFile.Multiselect = true;
                openFile.ShowDialog();
    
                string[] selectFiles = openFile.FileNames;           
                songs.AddRange(selectFiles);
    
                for (int i = 0; i < selectFiles.Length; i++)
                {
                    listBox1.Items.Add(Path.GetFileName(selectFiles[i]));
                }
            }
    
            //双击播放
            private void listBox1_DoubleClick(object sender, EventArgs e)
            {
                song.SoundLocation = songs[listBox1.SelectedIndex];
                song.Play();
            }
    
            //上一曲
            private void button2_Click(object sender, EventArgs e)
            {
                int count = songs.Count;
                if (listBox1.SelectedIndex == 0)
                    listBox1.SelectedIndex = count - 1;
                else
                    listBox1.SelectedIndex = (listBox1.SelectedIndex - 1)% count;
          
                song.SoundLocation = songs[listBox1.SelectedIndex];
                song.Play();
    
            }
    
            //下一曲
            private void button3_Click(object sender, EventArgs e)
            {
                int count = songs.Count;
                listBox1.SelectedIndex = (listBox1.SelectedIndex + 1) % count;
                song.SoundLocation = songs[listBox1.SelectedIndex];
                song.Play();
            }
        }
    }

运行结果：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xpeWF6aGVuMjAxMQ_size_16_color_FFFFFF_t_70][]

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