SharedPreferences.Editor edit = getSharedPreferences("data", MODE_PRIVATE).edit();

 edit.putString("bookname", "完美");

 edit.putString("anthor", "刘红");

 edit.putInt("page", 700);

 edit.putInt("price", 230);

 edit.apply();

 SharedPreferences prep = getSharedPreferences("data", MODE_PRIVATE);

  String bookname= prep.getString("bookname", "");

  String anthor= prep.getString("anthor", "");

  int page= prep.getInt("page",0);

  int price=prep.getInt("price",0);