C# 操作符重载

class Program
{
static void Main(string[] args)
{
A a = new A();
a.x = 1;
B b = new B();
b.y = 2;
A c = a + b;//因为重载了加号操作符，所以这里可以直接相加
Console.WriteLine(c.x);//4

Console.Read();
}
public class A
{
public int x;
public static A operator +(A a, B b)
{
a.x = a.x + b.y;
return a;
}
}
public class B
{
public int y;
}
}