如何在C#中实现运算符重载?
重载运算符是具有特殊名称的函数。关键字运算符用于重载运算符,后跟要定义的运算符的符号
让我们看看如何实现运算符重载-
示例
using System; namespace Demo { class Box { private double length; // Length of a box private double breadth; // Breadth of a box private double height; // Height of a box public double getVolume() { return length * breadth * height; } public void setLength( double len ) { length = len; } public void setBreadth( double bre ) { breadth = bre; } public void setHeight( double hei ) { height = hei; } //重载+运算符可添加两个Box对象。 public static Box operator+ (Box b, Box c) { Box box = new Box(); box.length = b.length + c.length; box.breadth = b.breadth + c.breadth; box.height = b.height + c.height; return box; } } class Tester { static void Main(string[] args) { Box Box1 = new Box(); // Declare Box1 of type Box Box Box2 = new Box(); // Declare Box2 of type Box Box Box3 = new Box(); // Declare Box3 of type Box double volume = 0.0; // Store the volume of a box here //框1规格 Box1.setLength(6.0); Box1.setBreadth(7.0); Box1.setHeight(5.0); //方框2规格 Box2.setLength(12.0); Box2.setBreadth(13.0); Box2.setHeight(10.0); //盒子1的体积 volume = Box1.getVolume(); Console.WriteLine("Volume of Box1 : {0}", volume); //盒子2的体积 volume = Box2.getVolume(); Console.WriteLine("Volume of Box2 : {0}", volume); //添加两个对象,如下所示: Box3 = Box1 + Box2; //盒子3的体积 volume = Box3.getVolume(); Console.WriteLine("Volume of Box3 : {0}", volume); Console.ReadKey(); } } }
输出结果
Volume of Box1 : 210 Volume of Box2 : 1560 Volume of Box3 : 5400