Python Exercise Example 4
Python 100 ExamplesProblem:Enter a year, month, and day, and determine which day of the year this date is?
Program analysis:Taking March 5 as an example, first add up the previous two months, then add 5 days to get the day of the year. Special case: if it is a leap year and the input month is greater than 2, one extra day should be added:
Program source code:
Example
#!/usr/bin/python3
year = int(input('year:\n'))
month = int(input('month:\n'))
day = int(input('day:\n'))
months = (0,31,59,90,120,151,181,212,243,273,304,334)
if 0 < month <= 12:
sum = months[month - 1]
else:
print ('data error')
sum += day
leap = 0
if (year % 400 == 0) or ((year % 4 == 0) and (year % 100 != 0)):
leap = 1
if (leap == 1) and (month > 2):
sum += 1
print ('it is the %dth day.' % sum)
The output result of the above example is:
year: 2015 month: 6 day: 7 it is the 158th day.Other extensions