东京热无码人妻系列综合网站_国产精品性色一区二区三区_网站大全免费网站_又爽又黄无遮拦成人网站_黄色影院免费观看_奇米影视在线观看

為啥這樣寫，兩個變量的值就可以互換？

int a = 500,b=200,c;
          
            c = a;        
            a = b;
            b = c;
            Console.WriteLine(a);        
            Console.WriteLine(b);
            Console.ReadKey();