# encoding: utf-8
from datetime import datetime, timedelta


# 获取当日日期
def get_cur_date():
    date = datetime.today()
    date = date.strftime('%Y.%m.%d')
    return date


# 获取前n日的日期
def get_pre_n_date(n=1):
    predate = datetime.today() + timedelta(-n)
    predate = predate.strftime('%Y.%m.%d')
    return predate