如何使用覆盖运算符==，！=，GetHasCode方法和Equals方法？

Question

我意识到我的问题不清楚，所以我添加了更多信息。 我一直在寻找无处不在的解决方案，但我找不到。我不知道如何使用重写运算符==，= !、 Gethashcode和equal方法。请帮我。

公共静态运算符bool ==（Time lhs，Time rhs）–此方法将覆盖equal运算符。如果两个参数之间的差小于15分钟，则此方法将返回true，否则返回false。该方法在Theater类的PrintShows（Time time）方法中使用。

PrintShows（Time time）–此公共方法将一个时间对象作为参数，并显示与该时间对象的小时值匹配的所有节目。只有在Time类中正确实现了==运算符后，才能正常工作

我正在尝试使用PrintShows（Time time）方法来显示符合特定条件的特定对象。

using System;
using System.Collections.Generic;
using static System.Console;
namespace sufferingg
{
    class Theatre
    {
        private List<Show> shows;
        private string name;

        public Theatre(string name)
        {
            this.name = name;
            shows = new List<Show>();
        }
        public void AddShow(Show show)
        {
            shows.Add(show);
        }
        public void PrintShows(Time time)
        {
            WriteLine("shows at {0}", time);
            WriteLine("-------------------------------------------------");
            List<Show> foundShows = shows.FindAll(x => x.Time == time);
            foreach (Show a in foundShows)
            {
                WriteLine(a);
            }

            WriteLine("-------------------------------------------------");
            WriteLine("The number of All shows: " + foundShows.Count +"\n");
        }
    }

    class Time
    {
        public int Hours { get; }
        public int Minutes { get; }

        public Time(int hours, int minutes)
        {
            this.Hours = hours;
            this.Minutes = minutes;
        }
        public override string ToString()
        {
            if (Minutes < 10)
                return Hours + ":0" + Minutes;
            else
                return Hours + ":" + Minutes;
        }
        //No idea how to use it properly
        public static bool operator ==(Time onehs, Time rhs)
        {
            int overallDiff = Math.Abs(onehs.Hours - rhs.Hours) * 60 +
                        Math.Abs(onehs.Minutes - rhs.Minutes);

            return overallDiff < 15;

    }
        public static bool operator !=(Time onehs, Time rhs)
        {
            int overallDiff = (onehs.Hours - rhs.Hours) * 60 + onehs.Minutes - rhs.Minutes;

            if (overallDiff < 15)
                return (onehs == rhs);
            else
                return false;
        }
        //I have no idea how to use GetHasCode and Equals...
        public override int GetHashCode()
        {
            return base.GetHashCode();
        }
        public override bool Equals(object obj)
        {
            return base.Equals(obj);
        }
    }

   class Show
   {
       public Movie Movie { get; }
       public Time Time { get; }
       public Show(Movie movie, Time time)
       {
           this.Movie = movie;
           this.Time = time;
       }
       public override string ToString()
       {
        return "Movie: " + Movie.Title + "\n"+                  
               "Time: " + Time + "\n"; 
       }
   }

   class Movie
   {
       public int Length { get; }
       public string Title { get; }

       public Movie(string name, int length)
       {
           this.Title = name;
           this.Length = length;
       }
   }

   class Program
   {
       static void Main(string[] args)
       {
           Theatre eglinton = new Theatre("Cineplex");

           Movie terminator = new Movie("Judgement Day", 105);
           Movie trancendence = new Movie("Transendence", 120);
           Movie americanbeauty= new Movie("americanbeauty, 105);

           eglinton.AddShow(new Show(terminator, new Time(13, 45)));            
           eglinton.AddShow(new Show(trancendence, new Time(18, 5)));
           eglinton.AddShow(new Show(americanbeauty, new Time(13, 55)));

           //display 2 object
           eglinton.PrintShows(new Time(13, 55));
       }
   }
}

程序应显示

在13:55显示

电影：终结者 时间：13：45

电影：Americanbeauty 时间：13：55

---

全部显示的数目：2

但仅显示

在13:55显示

电影：Americanbeauty 时间：13：55

---

全部显示的数目：1