下面代码的输出结果是def exchange(a,b): a,b = b,a return (a,b)x = 10y = 20x,y = exchange(x,y)print(x,y)选项: A:20,10; B:20 20; C: 10 10; D:20 10 结果是 输出 发布时间:2024-06-06 14:22:33