我似乎无法在我的平均方法中找到问题 [英] I can't seem to find the problem in my average method

问题描述

class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Enter number A");
            int numberA = int.Parse(Console.ReadLine());
            Console.WriteLine();
            Console.WriteLine("Enter number B");
            int numberB = int.Parse(Console.ReadLine());
            Console.WriteLine();

            Console.WriteLine("Chose an operation you want to call");
            Console.WriteLine("1=>  Reverse, 2 =>  Average, 3=>  a*x+b=0");
            Console.WriteLine();
            Console.Write("Your choice is =>  ");
            int choice = int.Parse(Console.ReadLine());

            switch (choice)
            {

                case 1:
                    ReverseNumbers(numberA);
                    ReverseNumbers(numberB);
                    break;

                case 2:
                    Console.WriteLine("Enter the amount of numbers you wish to work with:");
                    int amount = int.Parse(Console.ReadLine());
                    int[] numbersToBeAveraged = new int[amount];
                    for (int i = 0; i == amount; i++)
                    {
                        Console.Write("Enter a number");
                        int numberAdded = int.Parse(Console.ReadLine());
                        numbersToBeAveraged[i] = numberAdded;
                    }
                    Average(numbersToBeAveraged, amount);
                    break;

                //case 3:
                // LinearEquation(numberA, numberB);
                //    break;

                default:
                    Console.WriteLine("Wrong input");
                    break;
            }
        }
        public static void ReverseNumbers(int number)
        {
            string numberString = number.ToString();
            char[] numberArray = numberString.ToCharArray();
            string reversedNumberValue = string.Empty;

            for (int i = numberArray.Length - 1; i > -1; i--)
            {
                reversedNumberValue += numberArray[i];
            }
            Console.WriteLine();
            Console.WriteLine("Your reversed number is {0}", reversedNumberValue);
            Console.WriteLine();
        }

        public static void Average(int[] numbersAdding, int amountAdded)
        {
            for (int i = 0; i < numbersAdding.Length-1; i++)
            {
               int SumOfNumbers += numbersAdding[i];
            }
            Console.WriteLine(SumOfNumbers/amountAdded);
        }
    }
}

我尝试了什么：



我正在编写这个简单的程序，但无法理解为什么我的Average方法给我的错误

int SumOfNumbers + = numbersAdding [i];



当我将鼠标悬停在它们上面时我得到：

只有赋值，调用，递增，递减和新对象表达式才能用作陈述;预期

What I have tried:

I am writing this simple program but can't understand why my Average method is giving me errors on the
int SumOfNumbers += numbersAdding[i];

when I hover over them I get:
Only assignment, call, increment, decrement, and new object expressions can be used as a statement and ; Expected

推荐答案

在循环外声明变量

declare the variable outside the loop

public static void Average(int[] numbersAdding, int amountAdded)
       {
            int SumOfNumbers =0 ;
           for (int i = 0; i < numbersAdding.Length-1; i++)
           {
              int  SumOfNumbers += numbersAdding[i];
           }
           Console.WriteLine(SumOfNumbers/amountAdded);
       }

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