C#

struct_Operator_Overloading.cs

 1 using System;
 2 
 3 namespace 运算符重载
 4 {
 5     /*----------< 结构体:struct_Operator_Overloading >-----------
 6      * 运算符重载:
 7     ----------------------------------------------------------------*/
 8     public struct struct_Operator_Overloading
 9     {
10         public int nReal { get; set; }              // 实数部分
11         public int nImaginary { get; set; }       // 虚数部分
12         /*----------------------< 带参数构造函数 >------------------------
13          *  1.带参数的构造函数(必须加上【:this()】否则会有如下错误提示:
14          *    错误 CS0188: 在给“this”对象的所有字段赋值之前,无法使用该对
15          *    象.
16         ---------------------------------------------------------------------*/
17         public struct_Operator_Overloading(int real, int imaginary) : this()
18         {
19             nReal = real;
20             nImaginary = imaginary;
21         }
22         /*-------------------< 重载运算符【 + 】>---------------------
23          * 重载运算符【 + 】:
24          *      1.形参a : 第一个操作数, 必须为struct_Operation_Overrloading类型
25          *      2.形参b : 第二个操作数. 必须为struct_Operation_Overrloading类型
26          *      3.返回值: 必须为 struct_Operation_Overrloading 类型
27          *      4.修饰词: 必须加 public 
28          *      5.所有运算符重载的方法都应为静态方法: static 
29         ----------------------------------------------------------------*/
30         public static struct_Operator_Overloading operator +(struct_Operator_Overloading a, struct_Operator_Overloading b)
31         {
32             struct_Operator_Overloading result = new struct_Operator_Overloading();
33             result.nReal = a.nReal + b.nReal;
34             result.nImaginary = a.nImaginary + b.nImaginary;
35             return result;                      // 返回结果
36         }
37 
38         // 重写ToString()方法
39         public override string ToString()
40         {
41             return string.Format("{0}+{1}", nReal, nImaginary);
42         }
43 
44     }
45 
46 }

Program.cs

 1 using System;
 2 
 3 namespace 运算符重载
 4 {
 5     class Program
 6     {
 7         static void Main(string[] args)
 8         {
 9             struct_Operator_Overloading a = new struct_Operator_Overloading(10, 20);
10             struct_Operator_Overloading b = new struct_Operator_Overloading(30, 40);
11             struct_Operator_Overloading sum = new struct_Operator_Overloading();
12             // 利用重载的【+】来实现加法运算: 
13             //  即: a与b的形参1与形参1相加; 形参2与形参2相加
14             sum = a + b;    
15 
16             Console.WriteLine(" sum.nReal = {0}
 sum.Imaginary = {1}", sum.nReal, sum.nImaginary);
17             //测试 : 重写的ToString()方法
18             Console.WriteLine(" sum.ToSting();{0} ", sum.ToString());
19 
20             Console.ReadLine();
21         }
22     }
23 }