WPF播放声音

用MediaElement控件，一个放完到下一个

<Window x:Class="WpfApp1_candel.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:WpfApp1_candel"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    <StackPanel>
        <Label Content="序号"></Label>
        <TextBox Name="txtNo" Text="22"></TextBox>
        <Label Content="诊室"></Label>
        <RadioButton Name="rad1" GroupName="zhenzhi" Content="茴香诊室" IsChecked="True"></RadioButton>
        <RadioButton Name="rad2" GroupName="zhenzhi" Content="合香诊室"></RadioButton>
        <RadioButton Name="rad3" GroupName="zhenzhi" Content="沉香诊室"></RadioButton>
        <Button Content="播放声音" Name="btnBoFang" Click="btnBoFang_Click"></Button>
        <Label Name="lblRes"></Label>
 
        <MediaElement Name="me1" Source="music/请.mp3" Visibility="Collapsed" LoadedBehavior="Manual"   MediaEnded="me1_MediaEnded"  />
        <MediaElement Name="me2" Source="" Visibility="Collapsed" LoadedBehavior="Manual" MediaEnded="me2_MediaEnded"   />
        <MediaElement Name="me3" Source="music/号到.mp3" Visibility="Collapsed" LoadedBehavior="Manual" MediaEnded="me3_MediaEnded"   />
        <MediaElement Name="me4" Source="" Visibility="Collapsed" LoadedBehavior="Manual"  MediaEnded="me4_MediaEnded"  />
        <MediaElement Source="music/就诊.mp3" Margin="0,0,0,64" Name="me5" UnloadedBehavior="Manual" Stretch="Fill"  Visibility="Collapsed" LoadedBehavior="Manual"  MediaEnded="me5_MediaEnded"   />
    </StackPanel>
</Window>

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using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
 
namespace WpfApp1_candel
{
    /// <summary>
    /// MainWindow.xaml 的交互逻辑
    /// </summary>
    public partial class MainWindow : Window
    {
        private bool _isNoOver = false; //播放序号的声音是否完了
        private List<string> listno = new List<string>() { "1", "百", "2", "十", "4" };
        private int start = 0;
        public MainWindow()
        {
            InitializeComponent();
        }
 
        private void btnBoFang_Click(object sender, RoutedEventArgs e)
        {
            string no = txtNo.Text;
            if (no.Length > 4)
            {
                lblRes.Content = "最多是4位数";
                return;
            }
            string zhenshi = "";
            if (rad1.IsChecked.Value)
            {
                zhenshi = "茴香诊室";
            }
            else if (rad2.IsChecked.Value)
            {
                zhenshi = "合香诊室";
            }
            else
            {
                zhenshi = "沉香诊室";
            }
            string str = $"请{no}号到{zhenshi}就诊";
            SplitNo(no);
            lblRes.Content = str;
            me4.Source = new Uri(System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, $"music/{zhenshi}.mp3"));
            me1.Play();
        }
        //把序号拆成一个一个数存到listno集合中，如 124 拆开来存到 listno中为  new List<string>() { "1", "百", "2", "十", "4" };
        private void SplitNo(string no)
        {
            listno.Clear();
            var arr = no.ToCharArray();
            switch (arr.Length)
            {
                case 1: //一位数
                    listno.Add(arr[0].ToString());
                    break;
                case 2: //二位数  new List<string>() {  "2", "十", "4" };
                    listno.Add(arr[0].ToString());
                    listno.Add("十");
                    if (arr[1] != '0')
                    {
                        listno.Add(arr[1].ToString());
                    }
                    break;
                case 3:
                    listno.Add(arr[0].ToString());
                    listno.Add("百"); 
                    listno.Add(arr[1].ToString()); 
                    listno.Add("十"); 
                    listno.Add(arr[2].ToString());
 
                    if (arr[2] == '0')
                    {
                        //个位是0，把最后的个位去掉
                        listno.RemoveAt(4);
                        if (arr[1] == '0')
                        {
                            //个位是0，十位是0 ，只保留前面二位：X百
                            listno.RemoveAt(2);
                            listno.RemoveAt(3);
                        }
                    }
                    else if (arr[1] == '0')
                    {
                        //个位不是0，十位是0，把”十“去掉
                        listno.Remove("十");
                    }
                    break;
                case 4:
                    listno.Add(arr[0].ToString());
                    listno.Add("千");
                    listno.Add(arr[1].ToString());
                    listno.Add("百");
                    listno.Add(arr[2].ToString());
                    listno.Add("十");
                    listno.Add(arr[3].ToString());
 
                    if (arr[3] == '0')
                    {
                        //个位是0 把最后一位去掉
                        listno.RemoveAt(6);
                        if (arr[2] == '0')
                        {
                            //十位是0，把”十“去掉
                            listno.Remove("十");
                        }
                        if (arr[2] == '0' && arr[3] == '0')
                        {
                            //十位是0，个位也是0， 去掉十位的数字，不用读出来
                            listno.RemoveAt(4);
                        }
                        if (arr[1] == '0')
                        {
                            //百位是0，把”百“去掉
                            listno.Remove("百");
                        }
                        if (arr[1] == '0' && arr[2] == '0' && arr[3] == '0') {
                            //百位，十位，个位 都是0的，把百位的数字去掉，不用读出来
                            listno.RemoveAt(2);
                        }
                    }
                    else if (arr[2] == '0')
                    {
                        //十位是0，把”十“去掉，不用读出来
                        listno.Remove("十");
                        if (arr[1] == '0')
                        {
                            //百位是0，把”0“，”百“去掉，不读出来
                            listno.RemoveAt(2);
                            listno.Remove("百");
                        }
                    }
                    else if (arr[1] == '0')
                    {
                        //只有百位是0，把”百“去掉，读成”1“，”千“，”0“，”2“，“十”，“4”
                        listno.Remove("百");
                    }
                    break;
                default:
                    break;
            }
        }
 
        private void me1_MediaEnded(object sender, RoutedEventArgs e)
        {
            me1.Stop();
            me2.Source = new Uri(System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, $"music/{listno[start]}.mp3"));
            me2.Play();
        }
 
        private void me2_MediaEnded(object sender, RoutedEventArgs e)
        {
 
            start++;
            if (start >= listno.Count)
            {
                _isNoOver = true;
                start = 0;
                me2.Stop();
                me3.Play();//播放”号到“
            }
            else
            {
                //序号没播放完就继续放下一位
                me2.Source = new Uri(System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, $"music/{listno[start]}.mp3"));
                me2.Play();
            }
 
 
        }
 
        private void me3_MediaEnded(object sender, RoutedEventArgs e)
        {
            me3.Stop();
            me4.Play();
        }
        private void me4_MediaEnded(object sender, RoutedEventArgs e)
        {
            me4.Stop();
            me5.Play();
        }
        private void me5_MediaEnded(object sender, RoutedEventArgs e)
        {
            me5.Stop();
        }
 
 
    }
}

花一上午弄上面的代码，结果在群里一问，有个更简单的。直接调用系统内置的。。。

private void Button_Click(object sender, RoutedEventArgs e)
{
 
    // Initialize a new instance of the SpeechSynthesizer.  
    using (SpeechSynthesizer synth = new SpeechSynthesizer())
    {
 
        // Configure the audio output.   
        synth.SetOutputToDefaultAudioDevice();
 
        // Speak a string synchronously.  
        synth.Speak("请第38号患者李娟娟到华兴诊室就诊");
    }
}