我如何编写一个名为manipulate_data的函数，其作用如下： [英] How do I write a function called manipulate_data which will act as follows:

问题描述

当给出整数列表时，返回一个列表，其中第一个元素是正数的数量，第二个元素是负数的总和。



我的尝试：



YESSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS .................... ... SSS

When given a list of integers, return a list, where the first element is the count of positives numbers and the second element is the sum of negative numbers.

What I have tried:

YESSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS.......................SSS

推荐答案

小心。



我们不做你的作业：它是为一个原因。它就是为了让你思考你被告知的事情，并试着理解它。它也在那里，以便您的导师可以识别您身体虚弱的区域，并将更多的注意力集中在补救措施上。



亲自尝试，你可能会发现它不是和你想的一样困难！



如果遇到具体问题，请询问相关问题，我们会尽力提供帮助。但是我们不会为你做这一切！

Carefully.

We do not do your homework: it is set for a reason. It is there so that you think about what you have been told, and try to understand it. It is also there so that your tutor can identify areas where you are weak, and focus more attention on remedial action.

Try it yourself, you may find it is not as difficult as you think!

If you meet a specific problem, then please ask about that and we will do our best to help. But we aren't going to do it all for you!

我们不做你的HomeWork。

HomeWork不会测试你的技能在乞求其他人们做你的工作，它将帮助你的老师检查你对你所学课程的理解，以及你应用它们时遇到的问题。

任何失败都会帮助你的老师发现你的弱点并设定补救措施。

所以，重读你的课程并开始工作。如果您遇到特定问题，请显示您的代码并解释这个问题，我们可以提供帮助。

We do not do your HomeWork.
HomeWork is not set to test your skills at begging other people to do your work, it is set to help your teacher to check your understanding of the courses you have taken and also the problems you have at applying them.
Any failure of you will help your teacher spot your weaknesses and set remedial actions.
So, Reread your lessons and start working. If you are stuck on a specific problem, show your code and explain this exact problem, we may help.

试试这个

try this

public void SomeFunction()
   {
       List<int> lst = new List<int> ();
       lst.AddRange(new int[]{1,2,3,4,-1,-2,-3,-4});
       var data = manipulate_data(lst);
   }

   public  List<int>  manipulate_data (List<int> lstInput)
   {
       int positiveCount =0;
       int negativeSum = 0;
       foreach (var item in lstInput)
       {
           if (item > 0)
               positiveCount++;
           else if (item < 0)
           {
               negativeSum += item;
           }
       }
       List<int> lstOutput = new List<int>();
       lstOutput.Add(positiveCount);
       lstOutput.Add(negativeSum);
       return lstOutput;

   }

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