时间戳

首页 > 解决方案 > 我的数组类错误 CS0120 C# 的问题

c# - 我的数组类错误 CS0120 C# 的问题

问题描述

我还在学习编码，所以如果有什么问题，请告诉我！这是给学校的作文。

我正在编写一个代码，询问有关游戏的一些信息：游戏名称、背后的开发人员、发行商及其成本。

这篇文章有多个不同的任务，例如：制作一个使用 get set、数组、方法等的程序。我把它全部变成了一个程序，但我遇到了错误

CS0120 非静态字段、方法或属性“Program.gameInfoArray”需要对象引用

编码：

class Program
{
    //the class array that stores the games
    public gameInfo[] gameInfoArray = new gameInfo[10];

    static void Main(string[] args)
    {


        bool done = false;
        // this is where i get the issue 
        for (int i = 0; i >= gameInfoArray.Length || done == false; i++)
        {
            //asks what the game is called
            Console.WriteLine("What is the game called:");
            string gameName = Console.ReadLine();

            //asks who the devolopers are
            Console.WriteLine("Who where the devolopers behind the game:");
            string devoloper = Console.ReadLine();

            //asks who published the game
            Console.WriteLine("Who released the game:");
            string publisher = Console.ReadLine();

            //ask how much the game costs
            Console.WriteLine("How much does the game cost:");
            string cost = Console.ReadLine();

            //inputs the information in to the class array, this is also where i get the issue 
            gameInfoArray[i].gameInformationGrabber(gameName, devoloper, publisher, cost);

            //asks if the 
            Console.WriteLine("are there any more games? Y/N");
            while(true)
            {
                ConsoleKeyInfo yesOrNo = Console.ReadKey();
                if ((yesOrNo.KeyChar == 'Y') || (yesOrNo.KeyChar == 'y'))
                {
                    done = true;
                    break;
                }
                else if ((yesOrNo.KeyChar == 'N') || (yesOrNo.KeyChar == 'n'))
                {
                    break;
                }

            }
        }

    }
}

剧本：

class gameInfo
{
    private string gameName;
    private string devoloper;
    private string publisher;
    private string cost;

    public void gameInformationGrabber(string game, string dev, string publisher, string cost)
    {
        theGameName = game;
        theDevs = dev;
        thePublisher = publisher;
        theCost = cost;

    }
    public string theGameName
    {
        get { return gameName; }
        set { gameName = value; }
    }

    public string theDevs
    {
        get { return devoloper; }
        set { devoloper = value; }
    }

    public string thePublisher
    {
        get { return publisher; }
        set { publisher = value; }

    }
    public string theCost
    {
        get { return cost; }
        set { cost = value; }

    }

}

提前致谢。对不起，如果我在代码的某个地方搞砸了。

标签： c#

解决方案

您有两条评论，这对您来说是完美的解决方案。我希望你花时间从中获得一个基本的概念。但是，这将对您有所帮助。

1. 仅静态

这是一个解决方案提到的评论。

class Program
{
    // Add static keyword. Because Main() method is static. 
    // So, every variable inside it should be static.
    // public gameInfo[] gameInfoArray = new gameInfo[10];
    public static gameInfo[] gameInfoArray = new gameInfo[10];

    static void Main(string[] args)
    {
       ......
    }
}

2. 使用局部变量

class Program
{    
    //public gameInfo[] gameInfoArray = new gameInfo[10];    

    static void Main(string[] args)
    {
       // Declare as local variable.
       // In static method will now complain using local variable.
       gameInfo[] gameInfoArray = new gameInfo[10];
       ......
    }
}

我试过运行这段代码，请不要忘记初始化gameInfoArray以防止空引用异常。在进入 for 循环之前你可能需要这个，

for (int index = 0; index < gameInfoArray.Length; index++)
{
   gameInfoArray[index] = new gameInfo();
}

推荐阅读