无码精品人妻一区二区三区入口-无码精品人妻一区二区三区夜夜嗨-无码精品人妻一区二区三区颖A片-无码精品日本一区二区桃花岛-无码精品网站-无码精品一

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();