如何计算输入年份之间的天数

def is_leap_year(year):
    return (year % 4 == 0 and year % 100 != 0) or year % 400 == 0

def calculate_days(start_year, end_year):
    total_days = 0
    for year in range(start_year, end_year + 1):
        if is_leap_year(year):
            total_days += 366
        else:
            total_days += 365
    return total_days

start_year = int(input("请输入起始年份："))
end_year = int(input("请输入结束年份："))

days = calculate_days(start_year, end_year)
print("起始年份和结束年份之间的天数为：", days)