C ++数组(入门) [英] C++ array (Beginner)

问题描述

我错过了向量数组，抱歉(数组在瑞典语中是vektor)

I misstook arrays for vectors, Sorry (array is vektor in swedish)

我需要一些正在制作的程序的帮助.这是一项任务，所以我真的需要了解我如何做到这一点，而不仅仅是获得代码:P

I would need some help with a program I'm making. It is a assignment so I really need to understand how I do this and not just get the code :P

我需要制作一个包含10个数字"的数组(我希望在程序运行时使它们可编辑). 完成此操作后，我需要使程序计算所有数字"/

I need to make a array containing 10 "numbers" (I would like to make them editable when the program is running). After I'v done this I need to make the program calculate the "average value" of all the numbers "/

如果您还可以选择多少个数字作为平均值，如果有人可以分享一些有关如何使用该数字的知识，那将是非常整洁的:P 无论如何，我已经尝试了一些代码来制作无效的向量，我不妨在这里添加它:

Would be pretty neat if you could pick how many numbers you wanted the average value of as well, if anyone could share some knowledge in how I should to that :P Anyways, I'v tried some code to make the vector that didn't work, I might as well add it here:

int vector[10];

和 vector [0]数字1:"； 等等，以便在向量中输入数字.

and vector[0] "number 1: "; and so on for the input of numbers in the vector.

int sum = vector[0] + vector[1] + ...
cout << "average value is: " << sum/5;

应该可以获取平均值(对吗?)

should work for getting the average value though (right?)

我应该补充:

float average(int v[], int n)

对于这件事，真的也无法做到.

to this thing as well, can't really se how though.

任何帮助/知识都太棒了！干杯.

Any help/knowledge at all would be awesome! Cheers.

推荐答案

如下所示的函数可用于计算包含n个元素的数组的平均值.

A function like following would work for computing average of an array containing n elements.

float average(int v[], int n)
{
    float sum = 0;
    for(int i = 0 ; i < n ; i++)
    {
       sum += v[i]; //sum all the numbers in the vector v
    }

    return sum / n;
}

您可以像完成操作一样声明数组，但是我建议您将其命名为vector，以避免混淆.关于更改数组中数字的游览问题，您可以执行以下操作，例如，将循环从1改为10，然后让用户输入所有字段的值.

You can declare your array as you have done however i do recommend you to name it something else then vector to avoid confusion. About tour issue with changing the numbers in the array you can do this by for example maning a loop going from one to 10 and then make the user enter values for all the fields.

vektorpåsvenska =数组p engelska(矢量ärnågotannat:))

Vektor på svenska = array på engelska (vector är något annat :))

这篇关于C ++数组(入门)的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！