[System.Serializable]
public class QuestionData
{
    public int multiplier1;
    public int multiplier2;
    public int result;
    public int wrongAnswer;    // 用于存储错误选项
    public bool isAnswerA;     // true 表示正确答案在选项A，false 表示在选项B
}

[System.Serializable]
public class QuestionDataList
{
    public QuestionData[] questions;
}