The week after we implemented the so-called game of 15, this little party favor where you move the numbers up, down, left or right.

到第三周，我们要编一个叫做“15”的游戏，就是经常在派对上玩的,可以把数字上，下，左，右移动的小游戏。

哈佛公开课 - 计算机科学课程节选

So in your mind, if you are now the computer program and you are executing this thing from top to bottom, what just has happened verbally is we are stepping into the line of code that says sort left half of elements.

在你们看来，如果你现在是计算机程序,正在从上到下执行一系列指令，刚才所发生的就是我们现在已执行到了这行代码,它告诉你要对左半部分的元素排序。

哈佛公开课 - 计算机科学课程节选

It's kind of--maybe a little shape over to the right down, up, down, up, that kind of thing 543 00:27:52,506 --> 00:27:55,776 and for triple we do down, over, up down, over, up, down, over, up. Okay?

这可能做得不太像,下,上,下,上,那种手势三拍子的时候我们就是下,平,上,下,平,上,下,平,上

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