And in the process of tidying it up and making it prettier, I'll often by accident find the bug.

让我的程序更漂亮些,在这个清理美化代码的过程中，我常常无意中发现我的错误。

麻省理工公开课 - 计算机科学及编程导论课程节选

bug This is an easy bug to come up with. But imagine, if you don't do the test, you're going to get answers that don't make any sense.

这是一个容易发现的，但是想象下，如果你没做测试的话,你会得到没有意义的答案，实际上。

麻省理工公开课 - 计算机科学及编程导论课程节选

And see if I can't get it to show up.

然后看bug会不会重现。

麻省理工公开课 - 计算机科学及编程导论课程节选