def is_leap_year(year):
if (year%4==0 and year%100!=0) or year%400==0:
return True
else:
return False
def count_days_interval():
input_date=input(
"请输入日期，格式：year-month-day：")
if input_date.count("-")!=2:
print(
"输入日期格式有误，格式：year-month-day，请重新输入日期")
return None
year,month,day=input_date.split("-")
if not (year.isdigit() and month.isdigit() and day.isdigit()):
print(
"输入日期必须为数字，格式：year-month-day，请重新输入日期：")
year=int(year)
month=int(month)
day=int(day)
init_year = 1949
init_month = 10
init_day = 1
if year-init_year==0:
if month ==init_month:
return day -init_day
elif month -init_month==1:
return 31+day-1
else:
return 31+30+day-1
elif year-init_year==1:
month_days=[31,28,31,30,31,30,31,31,30,31,30,31]
leap_day=0
if month >2 and is_leap_year(year):
leap_day=1
days =0
for i in month_days[:month-1]:
days+=i
return 92+leap_day+days+day
else:
month_days=[31,28,31,30,31,30,31,31,30,31,30,31]
leap_day=0
if month >2 and is_leap_year(year):
leap_day=1
days =0
for i in month_days[:month-1]:
days+=i
leap_days=0
for i in range(1950,year):
if is_leap_year(i):
leap_days+=1
years = year -init_year-1
return 92+leap_day+days+day+years*365+leap_days-1
print(count_days_interval())