Several loops are available to use so lets look at them

do loop  -  repeats unconditionally
for next -  a loop that ends at a predifined set point
while loop - a loop that ends on a condition being true

The examples

rem do loop just keep repeating
do
print "hi"
sync
loop
rem prints hi forever


rem loop 100 times
for a = 1 to 100
print "hi"
sync
next a
rem print hi only 100 times


rem loop until a condition is true
a = 0
while a < 50
inc a,1
pint "hi"
sync
loop
rem prints hi until a > 50


You'll need to experiment with the different loops and decide which you need based on what you want to do.

Expand on it

make a circle move across the screen with each type of loop

hint to make the circle disappear draw it black

this will teach you the limits of the loops and the differences between them




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