example = data.frame(age = c(34,19,44,22,34,12,54,63,23),
wash.hands = c("Before eating","Before eating, on public transportation","Before eating, After eating","After eating","on public
但是,如果我从philosopher中删除randomDelay语句,编译并运行,我的程序的输出将如下所示:1 is eating...1 is eating...2 is eating...2 is eating...2is eating...
2 is thinking...About 2500 lines later...