从文本文件c＃计算平均值

Question

我需要关于如何使程序显示的所有的定价相结合末

static void Main(string[] args) 
{ 
    int[] hours = new int[31]; 
    const decimal HOURLY_RATE = 2.5M; 
    const decimal MAX_FEE = 20.00M; 
    decimal pay; 
    int counter = 0; 
    string line; 
    StreamReader fileSR = new StreamReader("hours.txt"); 
    line = fileSR.ReadLine(); 
    while (line != null) 
    { 
     hours[counter] = int.Parse(line); 
     counter = counter + 1; 
     line = fileSR.ReadLine(); 
    } 
    fileSR.Close(); 
    Console.WriteLine("hours  pay"); 
    for (int i = 0; i < hours.Length; i++) 
    { 
     pay = Math.Min(hours[i] * HOURLY_RATE, MAX_FEE); 
     Console.WriteLine("{0,4} {1,10}", hours[i], pay.ToString("C")); 
    } 
    Console.ReadKey(); 




} 

} }

我有点粘在平均帮助如何让它显示所有结果，然后在应用程序底部添加平均值

Answer 1

我更喜欢使用类似下面的类来处理文件中的所有数据：

public class wages 
{ 
    const decimal HOURLY_RATE = 2.5M; 
    const decimal MAX_FEE = 20.00M; 
    private int _WorkingHour; 

    public int WorkingHour 
    { 
     get { return _WorkingHour; } 
     set 
     { 
      _WorkingHour = value; 
      _AmountToPay = Math.Min(value * HOURLY_RATE, MAX_FEE); 
     } 
    } 
    private decimal _AmountToPay; 

    public decimal AmountToPay 
    { 
     get { return _AmountToPay; } 
    } 

    public override string ToString() 
    { 
     return String.Format("{0,4} {1,10}", WorkingHour, AmountToPay.ToString("C")); 
    } 
} 

然后创建类的List细节从文件存储，显示他们并计算出类似下面的总和与平均值：

var LinesInFile = System.IO.File.ReadAllLines("hours.txt"); 
List<wages> wagesList = new List<wages>(); 
foreach (string line in LinesInFile) 
{ 
    wagesList.Add(new wages() { WorkingHour = int.Parse(line) }); 
} 

// Display the details 
Console.WriteLine("hours  pay"); 
foreach (wages wage in wagesList) 
{ 
    Console.WriteLine(wage.ToString());// overrided method will give you the formated string 
} 
Console.WriteLine("Average Pay : {0}", wagesList.Average(x => x.AmountToPay)); 

如果你仍然想要去与你的代码，然后您必须声明一个变量，以保持薪酬的总和，然后根据该值获得平均，我认为你必须遵循下面的代码：

Console.WriteLine("hours  pay"); 
decimal sumOfPay = 0; 
for (int i = 0; i < hours.Length; i++) 
{ 
    pay = Math.Min(hours[i] * HOURLY_RATE, MAX_FEE); 
    sumOfPay += pay; 
    Console.WriteLine("{0,4} {1,10}", hours[i], pay.ToString("C")); 
} 
Console.WriteLine("Average Pay : {0}", sumOfPay/hours.Length);