由于其保护级别而无法访问

• Z时代
• 2024-01-10
• 分类：问答

我不知道这个。问题在于，由于保护级别的原因，距离，球杆，清洁俱乐部，洞，比分和标准杆都无法访问，我不知道为什么，因为我认为自己做得对。

namespace homeworkchap8
{
    public class Clubs
    {
        protected string club;
        protected string distance;
        protected string cleanclub;
        protected string scores;
        protected string par;
        protected string hole;
        public string myclub
        {
            get { return club; }
            set {club = value; }
        }        
        public string mydistance
        {
            get { return distance; }
            set { distance = value; }
        }        
        public string mycleanclub
        {
            get { return cleanclub; }
            set { cleanclub = value; }
        }       
        public string myscore
        {
            get { return scores; }
            set { scores = value; }
        }       
        public string parhole
        {
            get { return par; }
            set { par = value; }
        }       
        public string myhole
        {
            get { return hole; }
            set { hole = value;}
        }
    }   
}

这是派生类：

namespace homeworkchap8
{
    public class SteelClubs : Clubs, ISwingClub
    {
        public void SwingClub()
        {
            Console.WriteLine("You hit a " + myclub + " " + mydistance);
        }
        public void clean()
        {
            if (mycleanclub != "yes")
            {
                Console.WriteLine("your club is dirty");
            }
            else
            {
                Console.WriteLine("your club is clean");
            }
        }
        public void score()
        {   
            Console.WriteLine("you are on hole " + myhole + " and you scored a " + 
                myscore + " on a par " + parhole);
        }            
    }
}

这是接口：

namespace homeworkchap8
{
    public interface ISwingClub
    {
        void SwingClub();
        void clean();
        void score();
    }  
}

这是主要代码：

namespace homeworkchap8
{
    class main
    {    
        static void Main(string[] args)
        {    
            SteelClubs myClub = new SteelClubs();
            Console.WriteLine("How far to the hole?");
            myClub.distance = Console.ReadLine();
            Console.WriteLine("what club are you going to hit?");
            myClub.club = Console.ReadLine();
            myClub.SwingClub();
            SteelClubs mycleanclub = new SteelClubs();
            Console.WriteLine("\nDid you clean your club after?");
            mycleanclub.cleanclub = Console.ReadLine();
            mycleanclub.clean();
            SteelClubs myScoreonHole = new SteelClubs();
            Console.WriteLine("\nWhat hole are you on?");
            myScoreonHole.hole = Console.ReadLine();
            Console.WriteLine("What did you score on the hole?");
            myScoreonHole.scores = Console.ReadLine();
            Console.WriteLine("What is the par of the hole?");
            myScoreonHole.par = Console.ReadLine();
            myScoreonHole.score();
            Console.ReadKey();    
        }
    }
}

回答：

在您的基类Clubs中，声明了以下内容protected

• 俱乐部;
• 距离;
• 清洁俱乐部
• 分数
• 标准
• 孔;

这意味着这些只能由类本身或从派生的任何类访问Clubs。

在您的main代码中，您尝试在类本身之外访问它们。例如：

Console.WriteLine("How far to the hole?");
myClub.distance = Console.ReadLine();

您已经（某种程度上正确地）为这些变量提供了公共访问器。例如：

public string mydistance
{
    get
    {
        return distance;
    }
    set
    {
        distance = value;
    }
}

这意味着您的主要代码可以更改为

Console.WriteLine("How far to the hole?");
myClub.mydistance = Console.ReadLine();

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