Python2.7中字符串形式的日期操作

from datetime import datetime

date_str = "2022-01-01"
date_obj = datetime.strptime(date_str, "%Y-%m-%d")

year = date_obj.year
month = date_obj.month
day = date_obj.day

formatted_date = date_obj.strftime("%Y-%m-%d")

from datetime import timedelta

# 假设有另一个日期对象
other_date_obj = datetime.strptime("2022-02-01", "%Y-%m-%d")

# 计算日期差值
diff = other_date_obj - date_obj

pip install python-dateutil

from dateutil.parser import parse
from dateutil.relativedelta import relativedelta

date_str = "2022-01-01"
date_obj = parse(date_str)

# 获取日期的年、月、日
year = date_obj.year
month = date_obj.month
day = date_obj.day

# 格式化日期为字符串
formatted_date = date_obj.strftime("%Y-%m-%d")

# 计算日期的差值
other_date_obj = parse("2022-02-01")
diff = relativedelta(other_date_obj, date_obj)