プログラミング学習の記録 578.3 5章(リスト)の練習問題5-8 『初めてのコンピュータサイエンス』(Jennifer Campbell, Paul Gries, Jason Montojo, Greg Wilson 著、長尾 高弘 訳、オライリー・ジャパン、2010年、ISBN978-4-87311-463-7)

開発環境

• Mac OS X Snow Leopard (OS)
• WingIDE
• Script言語: Python

『初めてのコンピュータサイエンス』(Jennifer Campbell, Paul Gries, Jason Montojo, Greg Wilson 著、長尾 高弘 訳、オライリー・ジャパン、2010年、ISBN978-4-87311-463-7)の5章(リスト), 5.13(練習問題), 5-8を解いてみる。

 

5-8

入出力結果(Python Shell)

Python 2.6.6 (r266:84374, Aug 31 2010, 11:00:51) [GCC 4.0.1 (Apple Inc. build 5493)] Type "help", "copyright", "credits" or "license" for more information. >>> print 'a' Traceback (most recent call last): File "<string>", line 1, in <fragment> IndentationError: unexpected indent (<wingdb_compile>, line 1) >>> print 'a' a >>> print 'a', a >>> print 'a' a >>> print 'a', a >>> print 'a' a >>> half_lives=[87.74,24110.0,6537.0,14.4,376000.0] >>> for hl in half_lives: ... print hl ... Traceback (most recent call last): File "<string>", line 2, in <fragment> IndentationError: expected an indented block (<wingdb_compile>, line 2) >>> for hl in half_lives: ... print hl ... 87.74 24110.0 6537.0 14.4 376000.0 >>> for hl in half_lives Traceback (most recent call last): File "<string>", line 1, in <fragment> invalid syntax: <string>, line 1, pos 21 >>> for hl in half_lives: ... print hl, ... 87.74 24110.0 6537.0 14.4 376000.0 >>> country_populations=[1295,23,7,3,47,21] >>> total=0 >>> for country_population in country_populations Traceback (most recent call last): File "<string>", line 1, in <fragment> invalid syntax: <string>, line 1, pos 46 >>> for country_population in country_populations: ... total+= population ... Traceback (most recent call last): File "<string>", line 2, in <fragment> NameError: name 'population' is not defined >>> for country_population in country_populations: ... total+=country_population ... >>> total 1396 >>> total 1396 >>>

問5

print 'a'と書くと、文字列と改行、print 'a'と書くと文字列とスペースとなる。