复数(重载运算符、重写ToString)

上海杰彻自动化设备有限公司 发布时间:2017-09-02 11:43:29
复数(重载运算符、重写ToString) using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace ConsoleApplication9

{

//定义一个复数结构

public struct Complex

{

public string complexstr;

private int real;

private int imaginary;

//结构中只可以定义带参数的构造函数,且若有此构造函数又有字段,并须在结构中赋值

public Complex(int r, int i)

{

this.real = r;

this.imaginary = i;

this.complexstr = "complex";

}

//重载加号运算符

public static Complex operator +(Complex c1,Complex c2)

{

return new Complex(c1.real + c2.real,c1.imaginary + c2.imaginary);

}

//重写结构Complex的ToString()方法

public override string ToString()

{

return (System.String.Format("{0} + {1}i", real, imaginary));

}

}

class Program

{

static void Main(string[] args)

{

Program p = new Program();

Complex c1 = new Complex(1, 2);

Complex c2 = new Complex(3, 4);

//自动判断操作数类型,选择相应的重载函数

Complex sum = c1 + c2;

int intsum = 2 + 2;

Console.WriteLine("c1:{0}", c1);

Console.WriteLine("c2:{0}", c2);

//结构Complex重写了ToString()方法

Console.WriteLine("Complex-sum:{0}", sum);

//类Program没有重写ToString()方法,站群,所以以字符串形式输出

Console.WriteLine("ProgramToString:{0}", p);

Console.WriteLine("Complex.complexstr:{0}",sum.complexstr);

Console.WriteLine(intsum);

Console.ReadLine();

}

}

}

结果:

c1:1 + 2i

c2:3 + 4i

Complex-sum:4 + 6i

ProgramToString:ConsoleApplication9.Program

Complex.complexstr:complex

4

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