Question

我开始学习C，目前正在编写一个基于文本的彩票游戏。但是我需要一种在游戏结束时存储价值的方法，因此可以保留下一个游戏。我在下面做了一个更简单的代码，代表了我需要的东西。请帮忙。

#include <stdio.h>

int main() {
    //TODO get "int saved" from save.txt
    printf("Value saved: %d\n", saved);
    printf("Add: ");
    int add;
    scanf("%d", &add);
    int new = saved+add;
    printf("New value: %d\n", new);
    //TODO save "int new" to save.txt
}

save.txt的：

Answer 1

试试这个

    // Getting range
public List<Dates> getRange(long dataStart, long dataEnd) {
    List<Dates> datesList = new ArrayList<Dates>();
    String selectQuery = "SELECT  * FROM " + TABLE_RESULTS_NAME;

    SQLiteDatabase db = this.getWritableDatabase();
    Cursor cursor = db.query(TABLE_RESULTS_NAME, new String[]{KEY_ID,
            KEY_DATA, KEY_COUTER}, KEY_DATA + " BETWEEN ? AND ? ", new String[]{String.valueOf(dataStart),String.valueOf(dataEnd)},null, null, null, null);

    // looping through all rows and adding to list
    for (cursor.moveToFirst(); !cursor.isAfterLast(); cursor.moveToNext()) {

        Dates dates = new Dates();
        dates.set_id(Integer.parseInt(cursor.getString(0)));
        dates.set_data(cursor.getLong(1));
        dates.set_counter(cursor.getInt(2));
        // Adding contact to list
        datesList.add(dates);
    }
    // return dates list
    return datesList;
}

C - 在.txt中读/写int变量

1 个答案: