Python——將字串轉換為日期

Python中標準模組datetime能夠將字串轉換為日期

from datetime import datetime

text = '2012-09-20'

y = datetime.strptime(text, '%Y-%m-%d')

print(y)

z = datetime.now()

diff = z - y

print(diff)

按特定格式輸出

nice_z = datetime.strftime(z, '%A %B %d, %Y')

print(nice_z)

datetime.strftime效能很差，下面自己編寫一個函數

from datetime import datetime

def parse_ymd(s):

year_s, mon_s, day_s = s.split('-')

return datetime(int(year_s), int(mon_s), int(day_s))

