计算两个日期之间有多少n.months

import datetime

def calculate_month_difference(start_date, end_date):
    # 计算起始日期和结束日期之间的年份和月份差值
    month_difference = (end_date.year - start_date.year) * 12 + (end_date.month - start_date.month)
    
    # 如果差值小于等于0，则返回0
    if month_difference <= 0:
        return 0
    
    return month_difference

# 设置起始日期和结束日期
start_date = datetime.datetime(2022, 1, 1)
end_date = datetime.datetime(2022, 12, 31)

# 计算月份差值
month_difference = calculate_month_difference(start_date, end_date)

print("两个日期之间的月份差值为：", month_difference)