Question

我做了一个简单的程序，用户决定程序中将使用多少个数字。

程序然后随机生成数字量。如何一起计算这些随机数？

<div class="album text-muted">
   <div class="container">
      <div class="row">
         <% @products.each do |product| %>
         <div class="card">
            <%= image_tag("picture_holder")%>
            <strong class="card-text"><%= product.summary %></strong>
            <a href="<%= product_path(product) %>"><%= image_tag("picture_holder")%><a>
            <p class="card-text"><%= product.price %></p>
            <p class="card-text"><%= product.description %></p>
         </div>
         <% end %>
      </div>
      <div class="row">
        <div class="col-md-12">
          <%= paginate @products %>
        </div>
      </div>
   </div>
</div>

Answer 1

你必须在while循环中求和，而不是在外面：

while (counter < amountOfNumbers) {
    counter++;
    int randomNumber = generateRandNums.Next(20);
    calcRandomNumbers += randomNumber;
    Console.Write(randomNumber + ", ");
}

您还可以将所有数字存储在List<int>中，然后使用list.Sum()。

Answer 2

    var list = new List<int>();

    for (int i = 0; i < amountOfNumbers; i++) 
      list.Add(generateRandNums.Next(20));

    calcRandomNumbers = list.Sum();

Answer 3

这看起来你错过了一些代码安排让我很困惑为什么你使用 calcRandomNumbers = + randomNumbers; out of while子句如果你想要总和。

class Program
{
    static void Main(string[] args)
    {
        int amountOfNumbers;
        int counter = 0;
        int randomNumbers = 0;
        int calcRandomNumbers=0;

        Random generateRandNums = new Random();
        Console.WriteLine(generateRandNums.Next(5, 29));

        Console.WriteLine("\nHow many numbers do you want to be entered?");
        amountOfNumbers = Convert.ToInt32(Console.ReadLine());

        while (counter < amountOfNumbers)
        {
            counter++;
            randomNumbers = generateRandNums.Next(20);
            Console.Write(randomNumbers + ", ");
            calcRandomNumbers = +randomNumbers;
        }
        Console.WriteLine("The final sum is " + calcRandomNumbers);
        Console.ReadKey();
    }
}

计算随机数

3 个答案: