计算多个数的平均值（控制台应用程序） c#

Question

就这个要求我不会了：
   使用while循环语句，依次读取输入的数值，计算各数之和保存在变量total中，并在变量count中记录输入的个数，当用户输入x或X时跳出循环
--------------------------------------------------------------------------------------------------------------------
希望大家帮忙，感激不尽！
------------------------------------------//这个是我写的小程序，但是没有上面的那个（当用户输入x或X时跳出循环）功能、
          static void Main(string[] args)
        {
            Int32 count = 0;
            float total = 0;
            string s_input;
            bool condition = true; //这个是我临时测试自己程序是否错误的哨兵            Console.WriteLine("Please Put Into Swatch Every Time !\n");
            Console.WriteLine("total == {0}", total.ToString());
            Console.WriteLine("count == {0}", count.ToString());
            Console.WriteLine("-------------------------------------\n");
            
            while (condition)
            {
                if (count == 4)  //这个是我临时测试自己程序是否错误的哨兵
                    condition = false;
                else
                {
                    s_input = Console.ReadLine();
                    total += Convert.ToInt32(s_input);
                    count++;
                    Console.WriteLine("total == {0}", total.ToString());
                    Console.WriteLine("count == {0}", count.ToString());
                }
            }
            Console.WriteLine("The Number Is {0}\n", (total / count));
        }

Answer 1

    s_input   =   Console.ReadLine(); 
    if (s_input=="x" || s_input == "X")
        break;
    total   +=   Convert.ToInt32(s_input); 或者用这个
    if (s_input.Equals("x") || s_input.Equals("X"))
        break;

Answer 2

这问题真无聊...等球赛开始更无聊...
//Int32 count = 0;
//改成int别名...统一风格...
int count = 0;
float total = 0;
string s_input;
bool condition = true;Console.WriteLine("Please Put Into Swatch Every Time:\n");
//Console.WriteLine("total == {0}", total.ToString());
//Console.WriteLine("count == {0}", count.ToString());
//上面两句有用吗？人人都知道是0
//Console.WriteLine("-------------------------------------\n");while (condition)
{
    s_input = Console.ReadLine();
    //total += Convert.ToInt32(s_input);
    //ToInt32只保留整数...改用TryParse避免异常...
    float tmp = 0;
    if (float.TryParse(s_input, out tmp))
    {
        total += tmp;
        count++;
        Console.WriteLine("total == {0}", total.ToString());
        Console.WriteLine("count == {0}", count.ToString());
    }
    else
    {
        //退出循环条件
        condition = (s_input.Trim().ToLower() != "x");
    }
}
Console.WriteLine("The Number Is {0}\n", (total / count));

Answer 3

try
{
    total   +=   Convert.ToInt32(s_input); 
    count++; 
}
catch
{
    Console.WriteLine("Numbers only.");
}