private void OnDestroy()
 {
     if (WalkmanControler._instance == this)
     {
         WalkmanControler._instance = null;
     }
 }
 private void OnDestroy()
 {
     if (WalkmanControler._instance == this)
     {
         WalkmanControler._instance = null;
     }
 }
 private void Awake()
 {
     WalkmanControler._instance = this;
 }
 private void Awake()
 {
     WalkmanControler._instance = this;
 }