drawline

[Magnus Lycka]

Ben Bush wrote:
> I had the following code and when I clicked the left mouse button one
> time. I got green line and the second click got a purple line and the
> green disappeared.
> I was confused by two questions:

It's good that these postings are archived, so that teachers can
check them before grading their students. After all,  the grades
belong to those who solved the problems, not to those who handed
them in...