学步园

    class XorArithmetic
    {
        static void Main()
        {

            XorArithmetic.UseNumericType();

            int a = 10;
            int b = 6;
            Console.WriteLine("before invoke ChangeNumeric method a:{0},b:{1}", a, b);
            XorArithmetic.ChangeNumeric(ref a, ref b);
            Console.WriteLine("After invoke ChangeNumeric method a:{0},b:{1}", a, b);
        }
        static void UseNumericType()
        {
            Console.WriteLine("当运算整数时");
            //使用XOR 运算符判断数字是否相等
            Console.WriteLine("是否相等:{0}", (6 ^ 6) == 0 ? true : false);
            //当0与任何数异或
            Console.WriteLine("0与任何数异或:{0}", 0 ^ 20);
            //当1与任何数异或
            Console.WriteLine("1与任何数异或:{0}", 1 ^ 11);
        }
        static void UseBoolType()
        {
            Console.WriteLine("当运算bool操作数时");
            //bool类型异或，只要有一个操作数为TRUE时才为true
            Console.WriteLine("true ^ false:{0}", true ^ false);
            Console.WriteLine("true ^ true:{0}", true ^ true);
            Console.WriteLine("false ^ false:{0}", false ^ false);
        }
        static void ChangeNumeric(ref int a,ref int b)
        {
            a = a ^ b;
            b = b ^ a;
            a = a ^ b;
        }
    }