Initialization. A very common bug is to initialize a variable. Go through a loop, and then forget to reinitialize it when it needs to be reinitialized again.

忘记初始化,忘记初始化变量是一个很常见的错误,运行完一个循环之后,当需要再次初始化时。

麻省理工公开课 - 计算机科学及编程导论课程节选

We know if we relaunch the Finder.

我们知道如果我们再次运行Finder程序。

麻省理工公开课 - 计算机科学及编程导论课程节选