Quincy Jones and Lionel Richie co-produced the single, and,with a production team that included rappers Will.i.am, Kanye West and L.L.Cool J, a new music segment and lyrics were added.

VOA: standard.2010.02.18

So where as I currently am manually typing like dash L cs50 and dash O hello.

刚刚我们提到自己动手敲,一些像/lcs50还有/0，hello这样的命令。

哈佛公开课 - 计算机科学课程节选