C#播放声音

   [DllImport("winmm.dll")]
        public static extern long PlaySound(String fileName, long a, long b);

        [DllImport("winmm.dll")]
        public static extern long mciSendString(string lpstrCommand, string lpstrReturnString, long length, long hwndcallback);

        /// <summary>
        /// 播放音乐文件(重复)
        /// </summary>
        /// <param name="p_FileName">音乐文件名称</param>
        public static void PlayMusic_Repeat(string p_FileName)
        {
            try
            {
                mciSendString(@"close temp_music", " ", 0, 0);
                mciSendString(@"open " + p_FileName + " alias temp_music", " ", 0, 0);
                mciSendString(@"play temp_music repeat", " ", 0, 0);
            }
            catch
            { }
        }

        /// <summary>
        /// 播放音乐文件
        /// </summary>
        /// <param name="p_FileName">音乐文件名称</param>
        public static void PlayMusic(string p_FileName)
        {
            try
            {
                mciSendString(@"close temp_music", " ", 0, 0);
                mciSendString(@"open " + p_FileName + " alias temp_music", " ", 0, 0);
                mciSendString(@"play temp_music", " ", 0, 0);
            }
            catch
            { }
        }

        /// <summary>
        /// 停止当前音乐播放
        /// </summary>
        /// <param name="p_FileName">音乐文件名称</param>
        public static void StopMusic(string p_FileName)
        {
            try
            {
                mciSendString(@"close " + p_FileName, " ", 0, 0);
            }
            catch { }
        }

        private void button18_Click(object sender, EventArgs e)
        {
            //getMessageMethod();
            PlayMusic_Repeat("你有新的消息");
        }