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   源码介绍

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需要启用 Windows Media Player 功能，否则会提示【System.Runtime.InteropServices.COMException:“没有注册类】

操作步骤：控制面板>>程序>>启用或者关闭windows 功能>>选中 媒体功能>>Windows Media Player,点击确定即可

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace mcirecordDome
{
    public partial class Form1 : Form
    {
        int sum=0;
        [DllImport("winmm.dll", EntryPoint = "mciSendString", CharSet = CharSet.Auto)]
        public static extern int mciSendString(
          string lpstrCommand,
          string lpstrReturnString,
          int uReturnLength,
          int hwndCallback
        ); 
        public Form1()
        {
            InitializeComponent();
        }
        List<string> listSong = new List<string>();
        //开始录音
        private void button1_Click(object sender, EventArgs e)
        {
            mciSendString("set wave bitpersample 8", "", 0, 0);
            mciSendString("set wave samplespersec 20000", "", 0, 0);
            mciSendString("set wave channels 2", "", 0, 0);
            mciSendString("set wave format tag pcm", "", 0, 0);
            mciSendString("open new type WAVEAudio alias movie", "", 0, 0);
            this.timer1.Start();
            mciSendString("record movie", "", 0, 0);

        }
        //暂停录音
        private void button2_Click(object sender, EventArgs e)
        {
            mciSendString("stop movie", "", 0, 0);
            //mciSendString("save movie 1.wav", "", 0, 0);
            this.timer1.Stop();
        }
        //保存录音
        private void button4_Click(object sender, EventArgs e)
        {
            //按日期保存文件
            string file = "save movie"   " "   DateTime.Now.ToString("yyyyMMddhhmmss")   ".wav";
            mciSendString(file, "", 0, 0);
            currentCount = 0;
            mciSendString("close movie", "", 0, 0);
        }
        public int currentCount = 0;
        //显示录制时间
        private void timer1_Tick(object sender, EventArgs e)
        {
            currentCount  = 1;
            this.label1.Text = currentCount.ToString().Trim();
        }
        //private AxWMPLib.AxWindowsMediaPlayer sndPlay;
        
            //sndPlay.URL=@"F:\360MoveData\Users\Administrator\Desktop\mcirecordDome\mcirecordDome\bin\Debug\20195803035848.wav";
        //选择文件
        private void button3_Click(object sender, EventArgs e)
        {
            OpenFileDialog ofd = new OpenFileDialog();
            ofd.Title = "请选择文件";
            ofd.Multiselect = true;
            ofd.InitialDirectory = @"D:\queena.pan\桌面\record\wav";
            ofd.Filter = "音乐文件|*.wav|mp3文件|*.mp3|所有文件|*.*";
            ofd.ShowDialog();
            //获得我们在文件夹中选择所有文件的全路径
            string[] path = ofd.FileNames;
            for (int i = 0; i < path.Length; i  )
            {
                //将音乐文件的文件名加载到ListBox中
                listBox1.Items.Add(Path.GetFileName(path[i]));
                //将音乐文件的全路径存储到泛型集合中
                listSong.Add(path[i]);
            }
        }

        private void axWindowsMediaPlayer1_Enter(object sender, EventArgs e)
        {

        }
        //播放暂停
        private void button7_Click(object sender, EventArgs e)
        {
            if (button7.Text == "播放")
            {
                axWindowsMediaPlayer1.URL = listSong[listBox1.SelectedIndex];
                axWindowsMediaPlayer1.Ctlcontrols.play();
                button7.Text = "暂停";
            }
            else
            {
                axWindowsMediaPlayer1.Ctlcontrols.pause();
                button7.Text = "播放";
            }
        }
        //上一首
        private void button5_Click(object sender, EventArgs e)
        {
            // 获得当前选中歌曲的索引
            int index = listBox1.SelectedIndex;
            index--;
            if (index < 0)
            {
                index = listBox1.Items.Count - 1;
            }
            //将重新改变后的索引重新的赋值给当前选中项
            listBox1.SelectedIndex = index;
            axWindowsMediaPlayer1.URL = listSong[index];
            axWindowsMediaPlayer1.Ctlcontrols.play();
        }
        //下一首
        private void button6_Click(object sender, EventArgs e)
        {
            int index = listBox1.SelectedIndex;
            index  ;
            if (index == listBox1.Items.Count)
            {
                index = 0;
            }
            listBox1.SelectedIndex = index;
            axWindowsMediaPlayer1.URL = listSong[index];
            axWindowsMediaPlayer1.Ctlcontrols.play();
        }
    }
}