具有相同方法和不同参数的不同类

本文关键字：参数 同类 方法 | 更新日期: 2023-09-27 18:21:00

我有三个类：ToBeMum、NewMum和ExperiencedMums。这些类有不同的方法，它们做相同的事情，但参数不同。如何重组代码以避免在所有三个类中复制/粘贴？例如：

NewMum:

public List<Question> GetMotherActualDayCareAge()
        {
            List<QuestionInfo> mumsHabits;
            var answers = Answers.GetAnswers;
            string answerValue = string.Empty;
            var oneA = from a in answers
                       where a.Questionid == "Q49d"
                       select new QuestionInfo { questionId = a.Questionid, userId = a.UserId };
            var oneB = from a in answers
                       where a.Questionid == "Q65d"
                       select new QuestionInfo { questionId = a.Questionid, userId = a.UserId };
            var temp = oneA.Union(oneB).ToList();
            mumsHabits = temp.Intersect(mothers, new UserIdEqualityComparer()).ToList();
            return mumsHabits;
        }

经验妈妈

public List<QuestionInfo> GetMotherActualDayCareAge()
        {
            List<QuestionInfo> mumsHabits;
            var answers = Answers.GetAnswers;
            string answerValue = string.Empty;
            var oneA = from a in answers
                       where a.Questionid == "Q49c"
                       select new QuestionInfo { questionId = a.Questionid, userId = a.UserId };
            var oneB = from a in answers
                       where a.Questionid == "Q65c"
                       select new QuestionInfo { questionId = a.Questionid, userId = a.UserId };
            var temp = oneA.Union(oneB).ToList();
            mumsHabits = temp.Intersect(mothers, new UserIdEqualityComparer()).ToList();
            return mumsHabits;
        }

具有相同方法和不同参数的不同类

这将非常简单。您可以在一个单独的类中编写具有相同概念的通用方法。

例如，创建一个名为Helper.cs的类，该类应包含以下方法

public List<QuestionInfo> GetMotherActualDayCareAge(string var1, string var2)
    {
        List<QuestionInfo> mumsHabits;
        var answers = Answers.GetAnswers;
        string answerValue = string.Empty;
        var oneA = from a in answers
                   where a.Questionid == var1
                   select new QuestionInfo { questionId = a.Questionid, userId = a.UserId };
        var oneB = from a in answers
                   where a.Questionid == var2
                   select new QuestionInfo { questionId = a.Questionid, userId = a.UserId };
        var temp = oneA.Union(oneB).ToList();
        mumsHabits = temp.Intersect(mothers, new UserIdEqualityComparer()).ToList();
        return mumsHabits;
    }

现在只要在需要的地方调用这个方法。在您的情况下，您可以从ToBeMum.cs、NewMum.cs和ExperiencedMams.cs调用此方法。

对于前任，在NewMum.cs，你可以这样打电话。

List<QuestionInfo> quesList = GetMotherActualDayCareAge("Q49d", "Q65d");

在ExperiencedMam.cs中，您可以这样调用。

List<QuestionInfo> quesList = GetMotherActualDayCareAge("Q49c", "Q65c");

所以现在这变成了动态的，只写一个方法，并且在没有复制/粘贴的情况下多次调用该方法。

这是用户2549110的第二个问题的答案。

尝试创建一个抽象类，如AbsMumSurvey.cs，它应该包含以下

public abstract class AbsMumSurvey
{
   public abstract void IsDayCare();
   public abstract void IsEconomicalToEducateChild();
   public int NoOfBabies()
   {
       return 2;
       //This is the sample logic just for understanding. You can write your own logic. 
   }
}

现在IsDayCare（）和IsEconomicToEducationChild（）是抽象方法，应该在派生类中强制重写。

现在在GoingToDeliver.cs中，您可以执行以下操作。

public class GoingToDeliver : AbsMumSurvey
{
    public override void IsDayCare()
    {
        //Write your logic here.
    }
    public override void IsEconomicalToEducateChild()
    {
        //Write your logic here.
    }
}

您可以实现也可以不实现NoOfbabais（）。如果您还想实现NoOfBabies（），请尝试以下代码。

    public new int NoOfBabies()
    {
        return base.NoOfBabies();
    }

同样，您可以从许多类派生这些方法。

我将为以下内容提取一个通用方法：

var oneA = from a in answers
                       where a.Questionid == "Q49d"
                       select new QuestionInfo { questionId = a.Questionid, userId = a.UserId };
            var oneB = from a in answers
                       where a.Questionid == "Q65d"
                       select new QuestionInfo { questionId = a.Questionid, userId = a.UserId };

并将QuestionId作为参数传入，而不是在代码中对其进行硬编码。这个新方法可以从两个现有方法中调用，并避免重复代码

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