y:
Integer;
Pixel:
word)；
Draw a point. X, y are coordinates, piexl is color, and all colors can be coded in plastic.
0- 15
Line (x 1,
y 1，
x2，
y2:
Integer);
draw
A straight line from (x 1, y 1) to (x2, y2).
Circle (x, y:
Integer;
Radius:
word)；
Draw a circle
(x，y)
, radius
radius