我想在C中制作一个拼写纠正器。因此，阅读重音词是必要的。但是当我尝试打印出ASCII码时，例如# function for number of observations
give.n <- function(x){
return(c(y = median(x)*1.05, label = length(x)))
# experiment with the multiplier to find the perfect position
}
# plot
ggplot(mtcars, aes(factor(cyl), mpg, label=rownames(mtcars))) +
geom_boxplot(fill = "grey80", colour = "#3366FF") +
stat_summary(fun.data = give.n, geom = "text", fun.y = median)
：
à打印出垃圾。那么，这甚至可能吗？