如何获取两个时间值之间的间隔

import datetime

def get_time_interval(start_time, end_time):
    # 将时间值转换为日期对象
    start_datetime = datetime.datetime.strptime(start_time, "%Y-%m-%d %H:%M:%S")
    end_datetime = datetime.datetime.strptime(end_time, "%Y-%m-%d %H:%M:%S")

    # 计算时间间隔
    time_interval = (end_datetime - start_datetime).total_seconds()

    return time_interval

# 示例用法
start_time = "2022-01-01 00:00:00"
end_time = "2022-01-01 12:00:00"
interval = get_time_interval(start_time, end_time)
print("时间间隔为：{}秒".format(interval))