python3 获取n年前日期

code

import time
import datetime
import random

#13位时间戳
temp=time.time()
timestamp=int(round(temp*1000))
str_timestamp=str(timestamp)

t=datetime.datetime.now()
#15年前
d2=(t+datetime.timedelta(days=-365*15)).strftime("%Y%m%d")
#23年前
d3=(t+datetime.timedelta(days=-365*23)).strftime("%Y%m%d")

print(str_timestamp)
print(d2)
print(d3)

输出

macname@MacdeMacBook-Pro Desktop % python3 test.py 
1610095883568
20060112
19980114
macname@MacdeMacBook-Pro Desktop %