如何在没有datetime函数的情况下用python计算经过的时间？在我的python版本中
a = '2200'
b = '1800'
time1 = datetime.strptime(a,"%H%M") # convert string to time
time2 = datetime.strptime(b,"%H%M")
diff = time1 -time2
diff.total_seconds()/3600 # seconds to hour
不工作。也没有
# Create datetime objects for each time (a and b)
dateTimeA = datetime.datetime.combine(datetime.date.today(), a)
dateTimeB = datetime.datetime.combine(datetime.date.today(), b)
# Get the difference between datetimes (as timedelta)
dateTimeDifference = dateTimeA - dateTimeB
# Divide difference in seconds by number of seconds in hour (3600)
dateTimeDifferenceInHours = dateTimeDifference.total_seconds() / 3600
像这样的东西可以计算出来
a = '2200'
b = '1800'
to_minutes = lambda x: (float(x[:2]) * 60) + float(x[2:])
to_hours = lambda x: float(x) / 60
minutes_elapsed = to_minutes(a) - to_minutes(b)
hours_elapsed = to_hours(minutes_elapsed)