如何将运行总计/计数器添加到 C# 控制台应用程序

Question

我的应用程序正在接受用户输入（保龄球得分）并将它们平均化。我要解决的问题是允许用户随时停止的要求。我放置了 10 个 int 变量，并假设一个变量不会超过 10。我的问题是，我如何保持运行总计/计数，以便如果用户只输入 2 个分数来平均，我只除以 2？感谢您的帮助。

Console.WriteLine("Please input the score of game 1: ");
g1 = ReadLine();
game1 = int.Parse(g1);
Console.WriteLine("Would you like to add more scores? Press 'n' to continue to averaging, press any other key to continue!");
playagain = ReadLine();
if(playagain =="n")
{
    calculating(); 
}
Console.Clear();

这就是我编写程序的方式。我是否要创建一个变量，并在 while 语句中赋值，以声明是否按下了任何其他按钮（程序继续到游戏 2 的另一个用户输入），将 1 添加到变量？

Answer 1

使用List<int> 集合来存储分数，然后

1) 将列表中值的总和除以列表的计数属性：

var scores = new List<int>();
int total = 0;

foreach(var score in scores)
{
  total += score;
}

var average = total / scores.Count;

2）使用LINQ的.Average()方法快速获取列表中所有值的平均值：

var scores = new List<int>();
var average = scores.Average();

自然地使用任何数据类型或转换来获得您需要/期望的准确度。

Answer 2

您可以推入列表并使用 Sum() 和 Average() 扩展。为了保持分数，你可以使用 while 循环

    Console.WriteLine("Please input the score of game 1: ");
    List<int> scores = new List<int>();
    int game1 = int.Parse(Console.ReadLine());
    scores.Add(game1);
    Console.WriteLine("Would you like to add more scores? Press 'n' to continue to averaging, press any other key to continue!");
    string playagain = Console.ReadLine();
    while(playagain != "n")
    {
        Console.WriteLine("Please input the score of next game: ");
        scores.Add(int.Parse(Console.ReadLine()));
        Console.WriteLine("Would you like to add more scores? Press 'n' to continue to averaging, press any other key to continue!");
        playagain = Console.ReadLine();
    }
    Console.WriteLine("Total is " + scores.Sum());
    Console.WriteLine("Average is " + scores.Average());
    Console.Clear();

Answer 3

int count = 0; 
while(playagain != "n")
{
    Console.WriteLine("Please input the score of game 1: ");
    g1 = ReadLine();
    game1 += int.Parse(g1);
    count++;
    Console.WriteLine("Would you like to add more scores? Press 'n' to continue to averaging, press any other key to continue!");
    playagain = ReadLine();        
    Console.Clear();
}

count 变量将保持输入数量的运行总和，而 game1 变量将继续将分数相加。

更新问题；

class OtherClass{
   public int Counter {set; get;}
  .
  .//other logic
  .
}
OtherClass otherClass = new OtherClass();
int count = 0; 
while(playagain != "n")
{
    Console.WriteLine("Please input the score of game 1: ");
    g1 = ReadLine();
    game1 += int.Parse(g1);
    count++;
    Console.WriteLine("Would you like to add more scores? Press 'n' to continue to averaging, press any other key to continue!");
    playagain = ReadLine();        
    Console.Clear();
}
otherClass.Counter = count;