如何计算TOSCA中两个日期之间的月差？

import datetime

def calculate_month_difference(start_date, end_date):
    start_year = start_date.year
    start_month = start_date.month
    end_year = end_date.year
    end_month = end_date.month

    year_difference = end_year - start_year
    month_difference = end_month - start_month

    total_month_difference = year_difference * 12 + month_difference

    return total_month_difference

# 示例用法
start_date = datetime.datetime(2022, 1, 15)
end_date = datetime.datetime(2023, 3, 10)
month_difference = calculate_month_difference(start_date, end_date)
print("月差：", month_difference)