words = ['This', 'is', 'a', 'pen'] みたいなリストを 'This is a pen' と出力したい。微妙そうな書き方 words = ['This', 'is', 'a', 'pen'] for word in words: out += word + ' ' print out.strip() 頭よさそうな書き方 words = ['This', 'is', 'a', 'pe…