diff --git a/mainwindow.cpp b/mainwindow.cpp
index 479c7f0..66c9046 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -85,7 +85,7 @@ void MainWindow::mplayerInit()
         dup2(fd[1], 1);
         // 使用 exec 启动 mplayer
         //        execlp("mplayer","mplayer","-idle","-slave","-quiet","/home/flykhan/qtmplayer/song/StopLove.mp3",NULL);
-        execlp("/usr/bin/mplayer","mplayer","-idle","-slave","-quiet","-input","file=fifo_cmd","/home/flykhan/qtmplayer/song/StopLove.mp3",NULL);
+        execlp("/usr/bin/mplayer","mplayer","-idle","-slave","-quiet","-input","file=fifo_cmd","/home/flykhan/qtmplayer/song/Diamonds.mp3",NULL);
         _exit(-1); // 异常退出
     }
     else if(pid>0) // 父进程
@@ -307,7 +307,7 @@ void MainWindow::player_rewind_or_forward(int seconds)
 void MainWindow::volume_control(int value)
 {
     char changeSongBuf[128] = "";
-    int len = sprintf(changeSongBuf, "volume %d 1\n", value); // 音量调整到 value 大小
+    int len = sprintf(changeSongBuf, "volume %d\n", value); // 音量调整到 value 大小
     write(this->fifo_fd, changeSongBuf, len); // 将音量控制指令写入到有名管道中
 }
 
@@ -332,24 +332,24 @@ void MainWindow::on_mute_btn_clicked()
 {
     if(mute_flag == 0) // 没静音则按下后设置静音
     {
-        ui->play_btn->setIcon(QIcon(":/icon/mute2"));
+        ui->mute_btn->setIcon(QIcon(":/icon/mute1"));
 //        volume_mute_switch(1);
 //        mute_flag = 1;
         volume_mute_switch(++mute_flag);
     }
     else if (mute_flag == 1) // 已静音则按下后取消静音
     {
-        ui->play_btn->setIcon(QIcon(":/icon/mute1"));
+        ui->mute_btn->setIcon(QIcon(":/icon/mute2"));
         volume_mute_switch(--mute_flag);
     }
 }
 
 void MainWindow::on_volume_down_btn_clicked()
 {
-    volume_control(-5); // 减 5 音量
+    volume_control(-10); // 减 10 音量
 }
 
 void MainWindow::on_volume_up_btn_clicked()
 {
-    volume_control(5); // 加 5 音量
+    volume_control(10); // 加 10 音量
 }