C#比较两个对象是否相等

1、C#比较两个对象是否相等using System;using System.Collections.Generic;using System.Text; namespace ObjectCompare    /-    / <summary>    / 圆心    / </summary>    publ

2、ic struct CircleCenter            public double x;        public double y;         class Circle : IComparable, 

3、;IComparable<Circle>, IEquatable<Circle>            public double Radius = 0;   /半径         public CircleCenter center; /圆心  

4、60;      /实现IComparable接口定义的方法        /-        public int CompareTo(object obj)                

5、;    if (!(obj is Circle)                throw new ArgumentException("只能比对Cirlce对象");            return&#

6、160;CompareTo(obj as Circle);                 /实现IComparable<T>接口定义的方法        /-        public int CompareTo(Circl

7、e other)                    double ret = Math.Abs(other.Radius - this.Radius);            if (ret &l

8、t; 1e-3)                return 0;            if (other.Radius < this.Radius)         &#

9、160;      return 1;            return -1;                 /覆盖Object类的GetHashCode方法      &#

10、160; /-        public override int GetHashCode()                    /整数部分与小数点后3位相同的对象生成相同的哈希值        

11、;    return (int)(Radius * 1000);                 /重写Object类的Equals方法        /-        public overri

12、de bool Equals(object obj)                    if (this.CompareTo(obj) = 0)                

13、return true;            return false;                 /实现IEquatable<Circle>接口定义的方法        /-  

14、      public bool Equals(Circle other)                    return this.CompareTo(other) = 0;        &

15、#160;       /重载相关的运算符        /-        public static bool operator =(Circle obj1, Circle obj2)         &#

16、160;          return obj1.Equals(obj2);                 /-        public static bool operator !=(Circle&#

17、160;obj1, Circle obj2)                    return !(obj1.Equals(obj2);                  /-  

18、0;     public static bool operator >(Circle obj1, Circle obj2)                    if (obj1.CompareTo(obj2) > 0) &#

19、160;              return true;            return false;                 /- 

20、       public static bool operator <(Circle obj1, Circle obj2)                    if (obj1.CompareTo(obj2) < 

21、0)                return true;            return false;                

22、0;/-        public static bool operator <=(Circle obj1, Circle obj2)                    if (obj1.CompareTo(obj2) 

23、;< 0) | (obj1.CompareTo(obj2) = 0)                return true;            return false;      

24、;           /-        public static bool operator >=(Circle obj1, Circle obj2)               

25、0;    if (obj1.CompareTo(obj2) > 0) | (obj1.CompareTo(obj2) = 0)                return true;           

26、; return false;              using System;using System.Collections.Generic;using System.Text; namespace ObjectCompare    class Program        

27、60;   static void Main(string args)                    / 测试数据1：100.1和100.9            / 测试数据2：100.01

28、和100.01            Circle circle01 = new Circle  Radius = 100.01             Circle circle02 = new Circle 

29、0;Radius = 100.01              /测试覆盖的方法            Console.WriteLine("circle01.GetHashCode()结果：" + circle01.GetHashCode();    

30、;        Console.WriteLine("circle02.GetHashCode()结果：" + circle02.GetHashCode();             Console.WriteLine("circle01.CompareTo(circle02)结果：" + circle01.Comp

31、areTo(circle02);            Console.WriteLine("circle01.Equals(circle02)结果：" + circle01.Equals(circle02);             / 测试重载的运算符    

32、60;       bool bool01 = circle01 = circle02;            Console.WriteLine("circle01 = circle02判断结果：" + bool01.ToString();     

33、0;       bool bool02 = circle01 != circle02;            Console.WriteLine("circle01 != circle02判断结果：" + bool02.ToString();     

34、60;       bool bool03 = circle01 >= circle02;            Console.WriteLine("circle01 >= circle02判断结果：" + bool03.ToString();    &#

35、160;        Console.WriteLine("/");             /以下测试Circle对象数组的排序功能            Circle circles = new Circle10;

36、  /创建Circle对象数组             Random random = new Random();             for (int i = 0; i < 10; i+)                            circlesi