/// <summary>
/// 判定是否需要反推并重新作成計算式
/// </summary>
/// <remarks>
/// 情況1：計算式中存在0
/// </remarks>
/// <param name="currentFormula">當前算式</param>
/// <returns>需要反推：true 正常情況: false</returns>
private bool CheckIsNeedInverseMethod(MathWordProblemsFormula currentFormula)
{
if (currentFormula.Answers.Any(d => d.IndexOf('0') >= 0))
{
return(true);
}
return(false);
}
/// <summary>
/// 題型答案設置
/// </summary>
/// <param name="item">題型參數類</param>
/// <returns>題型答案</returns>
private string GetAnswer(MathWordProblemsFormula item)
{
StringBuilder answer = new StringBuilder();
item.Answers.ForEach(d =>
{
if (!string.IsNullOrEmpty(d))
{
answer.AppendFormat("{0};", Base64.EncodeBase64(d));
}
});
answer.Length -= 1;
return(answer.ToString());
}
