C#中的运算符函数
运算符函数是重载运算符，它们是具有特殊名称的函数。要创建它，关键字操作符后跟要定义的操作符的符号。
像任何其他函数一样，重载的运算符具有返回类型和参数列表。
例如-
public static Box operator+ (Vehicle v1, Vehicle v2, Vehicle v3) {
}以下是显示在C#中如何创建和使用运算符功能的完整示例-
示例
using System;
namespace OperatorOvlApplication {
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();
}
}
}