python - Asterisk Triangle -


i'm coming background in google's app inventor. i'm taking online class.

task: make triangle out of asterisks nested while loop. triangle has base of 19 asterisks , height of 10 asterisks.

here's am.

num = 1  while num <= 19:          print '*'         num = num * '*' + 2 print num

you can use 'center'-method string-objects:

width = 19  num in range(1, width + 1, 2):      print(('*' * num).center(width))           *                  ***                *****              *******            *********          ***********        *************      ***************    *****************  *******************

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