对于安卓数据库的一些应用代码 的显示问题

 //删除数据库
  //File dbFile = new File("/data/data/com.example.newtest/databases/BookStores.db");dbFile.delete();
 /*
  *  //查询数据库
  dbHelper = new MyDatabaseHelper(this, "BookStores.db", null, 1);
  dbHelper.getWritableDatabase();
  
  SQLiteDatabase dbss = dbHelper.getWritableDatabase();
  
  Cursor cursor = dbss.query("Books", null, null, null, null, null, null, null);
  if(cursor.moveToFirst()){
   do{
    String name = cursor.getString(cursor.getColumnIndex("name"));
    Log.d("dsds", ""+cursor.getCount());
    Log.d("dsds", name);
   }while(cursor.moveToNext());
  }
  cursor.close();
  
  
  
  * dbHelper = new MyDatabaseHelper(this, "BookStores.db", null, 1);
  dbHelper.getWritableDatabase();
  
  SQLiteDatabase dbss = dbHelper.getWritableDatabase();
  
  Cursor cursor = dbss.query("Books", null, null, null, null, null, null, null);
  if(cursor.moveToFirst()){
   do{
    String name = cursor.getString(cursor.getColumnIndex("name"));
    Log.d("dsds", ""+cursor.getCount());
    Log.d("dsds", name);
   }while(cursor.moveToNext());
  }
  cursor.close();