Python - Repeating Code Using Loops(while loop, print the triangles)

Practical Programming
An Introduction to Computer Science
Using Python 3
(Pragmatic Programmers)
(Pragmatic Bookshelf)
Paul Gries (著) Jennifer Campbell (著)
Jason Montojo (著) Lynn Beighley (編集)

開発環境

• OS X Mavericks - Apple(OS)
• Emacs (CUI)、BBEdit - Bare Bones Software, Inc. (GUI) (Text Editor)
• Python 3.4 (プログラミング言語)

Practical Programming: An Introduction to Computer Science Using Python 3 (Pragmatic Programmers) (Paul Gries (著)、Jennifer Campbell (著)、Jason Montojo (著)、Lynn Beighley (編集)、Pragmatic Bookshelf)のChapter 9(Repeating Code Using Loops)、9.10(Exercises) 15.を解いてみる。

9.10(Exercises) 15.

コード(BBEdit)

sample15.py

#!/usr/bin/env python3
#-*- coding: utf-8 -*-

print('13.')

i = 1
while i <= 7:
    print('T' * i)
    i += 1

print('14.')
i = 6
while i >= 0:
    print('{0}{1}'.format(' '* i, 'T' * (7 - i)))
    i -= 1

入出力結果(Terminal, IPython)

$ ./sample15.py
13.
T
TT
TTT
TTTT
TTTTT
TTTTTT
TTTTTTT
14.
      T
     TT
    TTT
   TTTT
  TTTTT
 TTTTTT
TTTTTTT
$