运算符号重载注意点

//二元运算符的参数之一必须是包含类型


//参数有一个必须是所在类


//-======================================================


using System;


using System.Collections.Generic;


using System.Text;




namespace MyStudy




...{


class Program




...{


static void Main(string[] args)




...{




result r1 = new result(10, 20);


test r2 = new test();


result r = r1 + r2;




Console.WriteLine(r.i);




}




}




public class result




...{


public static result operator +(result c1, test c2) //参数有一个必须是所在类




...{


result t1 = new result(0, 0);




t1.i = c1.i + c2.i;


t1.j = c1.j + c2.j;




return t1;


}




public int i,j;




public result(int i,int j)




...{


this.i = i;


this.j = j;




}




}


public class test




...{


public int i=100, j=200;


}




}



此外

1,在对比较运算符号进行重载时,要求成对重载(==, !=)(>,<)(>=,<=)
2.比较运算符必须返回bool类型的值.