拒绝课程/方法 [英] Reffer to a class/method

问题描述

我在我的Calroies Class中有这个方法，其中包含User类。

I have this method in my Calroies Class which inhertis the User class.

class Calories : User
    {
        public void CalcuateCaloriesMale()
        {
            var user = new User();
            var equation = (10 * user.Weight) + (6.25 * user.Height) - (5 * user.Age) + 5;
            Console.WriteLine("Based on the Mifflin – St Jeor Formula You need to eat {0} Kalories a day\nTo Gain Weight ", equation);

        }
    }

我在Program.cs中有这段代码

And i have this code in Program.cs

if (newGoal.GoalStatusGainWeight ==  true)
    {
        var calories = new Calories();
        switch (newUser.Gender)
        {
            case "m":
                calories.CalcuateCaloriesMale();
                break;

现在我不明白如何让Calories Class知道什么用户在开始时输入。

Now I dont understand how to make the Calories Class know what the user has typed in at the beginning of the Beginning.

newUser.Name = Question.AskString("Name: ");
    newUser.Age = Question.AskInt("Age: ");
    newUser.Gender = Question.AskString("Gender(m/f): ");
    newUser.Height = Question.AskInt("Height(cm): ");
    newUser.Weight = Question.AskInt("Weight(kg): ");

卡路里等级没有考虑用户输入的内容。

我认为我可以juse创建一个新用户，但我想我的想法是错误的。

我做错了什么？我怎么能想象这个有用呢？我可以更好地学习它吗？



我尝试了什么：



我不明白如何让代码知道用户在初始输入的内容

The Calories Class doesn't take into consideration waht the user has typed in.
I tought i can juse make a new User, but i guess my thinking was wrong.
What am i doing wrong ? How can i imagine this working so i can learn it better?

What I have tried:

I dont understand how to make the code know what the user has typed in initally

推荐答案

确保卡路里 class获取 newUser ，例如作为 CalculateCaloriesMale 的参数：

Make sure that the Calories class gets newUser, for example as argument to CalculateCaloriesMale:

        public void CalcuateCaloriesMale(User user) // add "user" parameter
        {
            // now you don't need this line: var user = new User();
            var equation = (10 * user.Weight) + (6.25 * user.Height) - (5 * user.Age) + 5;
            Console.WriteLine("Based on the Mifflin – St Jeor Formula You need to eat {0} Kalories a day\nTo Gain Weight ", equation);

        }

...

if (newGoal.GoalStatusGainWeight ==  true)
    {
        var calories = new Calories();
        switch (newUser.Gender)
        {
            case "m":
                calories.CalcuateCaloriesMale(newUser); // Pass newUser to the method
                break;

或者，您可以创建构造函数 [ ^ ] 卡路里并在那里拿一个用户并存储它，然后在无参数 CalculateCaloriesMale 类中使用它。



附注：制作<$ c几乎没有意义$ c>卡路里继承自用户。对于人类开发人员来说，卡路里似乎是某种类型的用户，这当然不是真的。并且它看起来没有任何用处。

Alternatively, you could create a constructor[^] for Calories and take a User there and store it, then use it in a parameterless CalculateCaloriesMale class.

Side note: it hardly makes sense to make Calories inherit from User. It would appear to a human developer as if Calories is a certain type of User, which is of course not true. And it doesn't look like it has any use.

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