输入你的出生日期和现在的日期或者死亡日期，程序会自动计算你活了多久

判断是否为闰年

def runYear(year):
if (year % 4 == 0 and year % 100 != 0) or (year % 400 == 0):
return 1
else:
return 0

计算天数

def countDay(currentDay):
perMonth = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]
totalDay = 0
year = 1970 # 1970年1月1日时间戳，算是电脑出生的日子
while year < currentDay['year']:
if runYear(year):
totalDay = totalDay + 366
else:
totalDay = totalDay + 365
year += 1
if runYear(currentDay['year']) == 1:
perMonth[2] += 1
i = 1
while i < currentDay['month']:
totalDay += perMonth[i]
i += 1
totalDay += currentDay['day']
return totalDay

if name == "main":
try:
print("请输入出生日期年，月，日(例如:2000 1 31):")
year1, month1, day1 = map(int, input().split()) # 表示连续输入3个int型并分别保存给
dateBirth = {'year': year1, 'month': month1, 'day': day1}
print("请输入今天的日期年，月，日(例如:2021 11 30):")
year2, month2, day2 = [int(i) for i in input().split()]
today = {'year': year2, 'month': month2, 'day': day2}
totalDay1 = countDay(dateBirth)
totalDay2 = countDay(today)
print("您从%d年%d月%d日出生到%d年%d月%d日：经历了%d天"
% (year1, month1, day1, year2, month2, day2, totalDay2 - totalDay1))
except:
print("输入格式不对,重新运行程序")