Coggle requires JavaScript to display documents.
for ... else ...
range(4) produces 0, 1, 2, 3. range(start, stop[, step])
print(value, ..., sep=' ', end='\n', file=sys.stdout, flush=False)
https://docs.python.org/3/tutorial/controlflow.html#Intermezzo:%20Coding%20Style -ASCII https://baike.baidu.com/item/ASCII/309296?fr=aladdin -UTF-8