問題與非靜態字段需要對象引用

Question

我有下面的代碼，我的問題是，當我引用變量時，它給了我錯誤：對象引用是非靜態字段，方法，或每個變量的屬性。我知道這是與我的公衆詮釋和公共雙重是非靜態的，但我不知道如何解決它。有人能告訴我可能嗎？

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Text; 

namespace homework3 
{ 
    public class Program 
    { 

      public int number_of_scores; 
      public double score, total_score = 0, high_score, low_score, average; 


    } 
    class Class1{ 

     static void Main(string[] args){ 


      Console.Write("please enter the number of scores that you 
wish to process? "); 
      Program.number_of_scores = int.Parse(Console.ReadLine()); 

      Console.Write("Please enter score " + 1 + " "); 
      Program.score = double.Parse(Console.ReadLine()); 

      Program.high_score = Program.score; 
      Program.low_score = Program.score; 

      Program.total_score = Program.total_score = Program.score; 


      for (int i = 2; i <= number_of_scores; i++); 
     } 
} 

    class class2 
     { 
     static void Main(string[] args){ 


       Console.Write("Please enter score " + i + " "); 
       Program.score = double.Parse(Console.ReadLine()); 

       Program.total_score = Program.total_score + Program.score; 

       if(Program.score > Program.high_score) 
       Program.high_score = Program.score; 

       if(Program.score < Program.low_score) 
       Program.low_score = Program.score; 
     } 
      } 

     class Class3 
    { 
      static void Main(string[] args){ 

      Program.average = Program.total_score/Program.number_of_scores; 

      Console.WriteLine("you entered " + Program.number_of_scores + 
" scores"); 
      Console.WriteLine("The high score is " + Program.high_score); 
      Console.WriteLine("The low score is " + Program.low_score); 
      Console.WriteLine("the average score is " + Program.average); 
    } 
     } 

Answer 1

在行：

Program.number_of_scores = int.Parse(Console.ReadLine()); 

您嘗試從靜態方法引用實例變量number_of_scores。

最微不足道的方式來獲取工作是聲明number_of_scores爲靜態：

static public int number_of_scores; 

你的一些其他領域的有同樣的問題。

Answer 2

您需要將number_of_scores和score（以及其他變量）聲明爲static。

public static int number_of_scores; 
public static double score, //etc