Python datetime 模块 时间增量的用法

#计算时间差
import datetime
from datetime import timedelta
now = datetime.datetime.now()
now_tm = (now + timedelta(hours=10)).strftime('%Y-%m-%d')
now_tm_day = (now + timedelta(days=2)).strftime('%Y-%m-%d')
now_tm_days = (now + timedelta(days=350)).strftime('%Y-%m-%d')
print("当前日期的时间",now)
print("10小时之后的时间",now_tm)
print("2天后的时间",now_tm_day)
print("350天后的时间",now_tm_days)

for t in range(7,0,-1):
    print(t)

获取最近7天的时间