我得到:TypeError:'datetime.datetime'对象不能解释为整数
start_day = str(input("Enter the start day: "))
end_day = str(input("Enter the end day: "))
start_day_cvt = datetime.strptime(start_day, "%d-%m-%Y")
end_day_cvt = datetime.strptime(end_day, "%d-%m-%Y")
for year in range(start_day_cvt,end_day_cvt):
print (year.strftime("%Y-%m-%d"))
leap = isLeap(year)
year = datetime.strptime(year, "%d-%m-%Y")