# Create the data for the chart.H <- c(7,12,28,3,41)M <- c("Mar","Apr","May","Jun","Jul")# Give the chart file a name.png(file = "barchart_months_revenue.png")# Plot the bar chart.barplot(H,names.arg = M,xlab = "Month",ylab = "Revenue",col = "blue",main = "Revenue chart",border = "red")比如以上代碼沒有錯，但是就是輸不出來圖片，為什么？
R語言里編碼正確，為什么就是不輸出圖片呢？
慕工程0101907
2019-03-03 10:04:50
