• The mouse moves the pointer,or cursor, on the computer screen.

    VOA: special.2010.08.01

  • And now, if I'm touching mouse pointer, we saw that Boolean expression before, play sound meow, wait a couple of seconds, and then just keep checking.

    现在,如果我们碰下鼠标指针,起初我们看到一个布尔表达式,播放猫叫的声音,等几秒钟,然后如刚才那样做检测。

    哈佛公开课 - 计算机科学课程节选

  • Scratch This Boolean expression allows you to say to scratch if you are touching the mouse pointer, the little arrow, do something. How do we do something?

    布尔表达式允许你告诉,当你触碰到鼠标指针,也就是小箭头,程序就相应地做一些事情?

    哈佛公开课 - 计算机科学课程节选

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