from datetime import datetime, timedelta

now_time = datetime.now()

today_date_format = now_time.strftime('%Y-%m-%d 00:00:00')

today_time_format = now_time.strftime('%Y-%m-%d')

return_time = (datetime.now() + timedelta(hours=8)).strftime('%Y-%m-%d %H:%M:%S%f')

# -*- coding: utf-8 -*-

import datetime

import time

def time_compare(timestr):

    # 将日期字符串转为时间再比较，time，datetime,str

    # timestr 是传入的时间字符串，格式如：2019-11-25 00:00:00

    # 获取当前时间日期

    now_time_str = datetime.datetime.now().strftime('%Y-%m-%d')

    print(now_time_str)

    # mktime参数为struc_time,将日期转化为秒，

    e_time = time.mktime(time.strptime(now_time_str, "%Y-%m-%d"))

    print(e_time)

    try:

        s_time = time.mktime(time.strptime(timestr, '%Y-%m-%d %H:%M:%S'))

        print(s_time)

        # 日期转化为int比较

        diff = int(e_time) - int(s_time)

        print(diff)

        if diff > 0:

            # 当前时间 大于 输入时间

            return True

        else:

            # 当前时间 小于 输入时间

            return False

    except Exception as e:

        print(e)

        return False

def time_compare_operation(time_str, delay_days):

    # 传入日期字符串+时间间隔(delay_days整数-单位/天) 跟当前时间 比较大小

    # 等效 传入日期字符串 和 当前时间-时间间隔(整数-单位：天) 比较大小  ---因为直接用当前时间做计算方便

    # time_str格式：2019-11-25 00:00:00

    # 获取当前时间日期 - 预警时间

    result_time_str = (datetime.datetime.now() - datetime.timedelta(days=delay_days)).strftime("%Y-%m-%d %H:%M:%S")

    print(result_time_str)

    result_time = time.mktime(time.strptime(result_time_str, "%Y-%m-%d"))

    try:

        s_time = time.mktime(time.strptime(time_str, '%Y-%m-%d %H:%M:%S'))

        print(s_time)

        # 日期转化为int比较

        diff = int(result_time) - int(s_time)

        print(diff)

        if diff > 0:

            # 当前时间 大于 传入日期字符串+时间间隔(整数-单位：天)

            return 'greater'

        elif diff == 0:

            # 当前时间 等于 传入日期字符串+时间间隔(整数-单位：天)

            return 'equal'

        else:

            # 当前时间 小于 传入日期字符串+时间间隔(整数-单位：天)

            return 'less'

    except Exception as e:

        print(e)

        return False