You need to, if you want something to be printed out inside your code, you need to tell the machine to do that.

你需要，如果你想要,在代码中显示一些东西的话，你需要告诉机器这么做。

麻省理工公开课 - 计算机科学及编程导论课程节选

So here we have the code you have printed before you.

好，我们再回到这些代码。

哈佛公开课 - 计算机科学课程节选

If I go back to that code from a moment ago, and I just rerun math3, notice how many places printed after the decimal point -- two?

如果刚才我回到那段代码中去，我们回到math3，请注意在小数点后面,会打印几位数呢--两位？

哈佛公开课 - 计算机科学课程节选