1. “%s" 可以被 “% ( )"內的字串給取代 (按照順序) (s=substitution)
2.  " \ " 用來將程式碼換行

name='Jumping'
quest='learning Python'
color='black'

print('Ah, so your name is %s, your quest is %s,' \
' and your favorite color is %s.' % (name, quest, color))

Ah, so your name is Jumping, your quest is learning Python, and your favorite color is black.

可以用此方法來輸出日期與時間

from datetime import datetime
now = datetime.now()

print('%s/%s/%s %s:%s:%s' % (now.year, now.month, now.day, now.hour, now.minute, now.second))

2017/8/30 11:52:38