import datetime
import arrow
def getTime(flag, dayhourminute):
'''
获取几小时之前,几分钟前，几天前，几个月前，及几年前的具体时间 flag, 1:天；2：小时；3：分钟；4：月，5：年
:param flag: 1:天；2：小时；3：分钟；4：月，5：年
:param dayhourminute: 整数值
:return: 具体时间 %Y-%m-%d %H:%M:%S
'''
tn = datetime.datetime.now()
t = None
ttime = ''
if flag <= 3:
if flag == 1:
t = datetime.timedelta(days=dayhourminute)
elif flag == 2:
t = datetime.timedelta(hours=dayhourminute)
elif flag == 3:
t = datetime.timedelta(minutes=dayhourminute)
strtime = tn - t
ttime = strtime.strftime('%Y-%m-%d %H:%M:%S')
else:
dt = arrow.now()
if flag == 4:
ttime = dt.shift(months=-dayhourminute).format("YYYY-MM-DD HH:MM:SS")
elif flag == 5:
ttime = str(
int(datetime.datetime.now().strftime("%Y")) - dayhourminute) + "-" + datetime.datetime.now().strftime(
"%m-%d")
return ttime
```python
