编程（C#)

(1)定义一个复数类Complex，(2)对运算符进行重载，以完成复数的加减乘除。(3)设计函数Main()测试之。

答案：
 
using System;
using System.Collections.Generic;
using System.Text;
namespace ConsoleApplication1
{
    class Complex
    {
        public double Real { get; set; }
        public double Com { get; set; }
        public Complex(double real, double com)
        {
            Real = real;
            Com = com;
        }
        public static Complex operator +(Complex c1, Complex c2)
        {
            double real = c1.Real + c2.Real;
            double com = c1.Com + c2.Com;
            return new Complex(real, com);
        }
        public static Complex operator -(Complex c1, Complex c2)
        {
            double real = c1.Real - c2.Real;
            double com = c1.Com - c2.Com;
            return new Complex(real, com);
        }
        public static Complex operator *(Complex c1, Complex c2)
        {
            double real = c1.Real * c2.Real - c1.Com * c2.Com;
            double com = c1.Com * c2.Real + c1.Real * c2.Com;
            return new Complex(real, com);
        }
        public static Complex operator /(Complex c1, Complex c2)
        {
            double real = (c1.Real * c2.Real + c1.Com * c2.Com) / (c1.Com * c1.Com + c2.Com * c2.Com);
            double com = (c1.Com * c2.Real - c1.Real * c2.Com) / (c1.Com * c1.Com + c2.Com * c2.Com);
            return new Complex(real, com);
        }
        //指定输出格式（重写）
        public override string ToString()
        {
            if (Real == 0)
            {
                return Com + "i";
            }
            else if (Com == 0)
            {
                return Real.ToString();
            }
            else if (Com > 0)
            {
                return Real + "+" + Com + "i";
            }
            else
            {
                return Real.ToString() + Com + "i";
            }
        }
    }
    class Program
    {
        static void Main(string[] args)
        {
            Complex c1 = new Complex(1, 2);
            Complex c2 = new Complex(3, 4);
            Console.WriteLine(c1 + c2);
            Console.WriteLine(c1 - c2);
            Console.WriteLine(c1 * c2);
            Console.WriteLine(c1 / c2);
        }
    }
}

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