Matthew Cole

有件事要记住 datetime.datetime datetime.timedelta 反对。以及 对象定义了除法运算符,因此可以得到 timedelta

import datetime as dt

start_date = dt.datetime(2010, 12, 31)
end_date = dt.datetime(2019, 5, 16)
print(round((end_date-start_date)/dt.timedelta(365,0,0,0),2)) #8.38
print(round((end_date-start_date)/dt.timedelta(365,5,49,12),2)) #8.38