python 日程管理程序具有添加日程、查询日程（由关键字日期/时间/标题/内容查询）、删除日程、显示日程列表、编辑日程和退出程序的功能

好的，这个程序需要用到一些库，比如datetime、os等。我们可以先定义一个主函数，然后再逐个实现这些功能。以下是一个简单的日程管理程序：

import datetime
import os

def main():
    while True:
        print('请选择操作：')
        print('1. 添加日程')
        print('2. 查询日程')
        print('3. 删除日程')
        print('4. 显示日程列表')
        print('5. 编辑日程')
        print('6. 退出程序')
        choice = input('请输入操作编号：')

        if choice == '1':
            add_schedule()
        elif choice == '2':
            query_schedule()
        elif choice == '3':
            delete_schedule()
        elif choice == '4':
            show_schedule_list()
        elif choice == '5':
            edit_schedule()
        elif choice == '6':
            print('程序已退出。')
            break
        else:
            print('输入有误，请重新输入。')

def add_schedule():
    print('请输入日程信息：')
    title = input('标题：')
    content = input('内容：')
    date_str = input('日期（格式为YYYY-MM-DD）：')
    time_str = input('时间（格式为HH:MM）：')
    datetime_str = date_str + ' ' + time_str
    try:
        schedule_time = datetime.datetime.strptime(datetime_str, '%Y-%m-%d %H:%M')
    except ValueError:
        print('日期或时间格式不正确，请重新输入。')
        return
    schedule = {'title': title, 'content': content, 'time': schedule_time}
    with open('schedule.txt', 'a') as f:
        f.write(str(schedule) + '\n')
    print('日程添加成功。')

def query_schedule():
    keyword = input('请输入查询关键字：')
    with open('schedule.txt', 'r') as f:
        schedules = f.readlines()
    for schedule in schedules:
        schedule = eval(schedule)
        if keyword in schedule['title'] or keyword in schedule['content'] or keyword in str(schedule['time']):
            print(schedule)

def delete_schedule():
    keyword = input('请输入待删除日程的关键字：')
    with open('schedule.txt', 'r') as f:
        schedules = f.readlines()
    new_schedules = []
    for schedule in schedules:
        schedule = eval(schedule)
        if keyword not in schedule['title'] and keyword not in schedule['content'] and keyword not in str(schedule['time']):
            new_schedules.append(schedule)
    with open('schedule.txt', 'w') as f:
        for schedule in new_schedules:
            f.write(str(schedule) + '\n')
    print('日程删除成功。')

def show_schedule_list():
    with open('schedule.txt', 'r') as f:
        schedules = f.readlines()
    for schedule in schedules:
        print(schedule)

def edit_schedule():
    keyword = input('请输入待编辑日程的关键字：')
    with open('schedule.txt', 'r') as f:
        schedules = f.readlines()
    for i, schedule in enumerate(schedules):
        schedule = eval(schedule)
        if keyword in schedule['title'] or keyword in schedule['content'] or keyword in str(schedule['time']):
            print(schedule)
            new_title = input('请输入新标题（如不修改请直接按回车）：')
            new_content = input('请输入新内容（如不修改请直接按回车）：')
            new_date_str = input('请输入新日期（格式为YYYY-MM-DD，如不修改请直接按回车）：')
            new_time_str = input('请输入新时间（格式为HH:MM，如不修改请直接按回车）：')
            if new_title:
                schedule['title'] = new_title
            if new_content:
                schedule['content'] = new_content
            if new_date_str and new_time_str:
                new_datetime_str = new_date_str + ' ' + new_time_str
                try:
                    new_schedule_time = datetime.datetime.strptime(new_datetime_str, '%Y-%m-%d %H:%M')
                    schedule['time'] = new_schedule_time
                except ValueError:
                    print('日期或时间格式不正确，修改失败。')
            schedules[i] = str(schedule) + '\n'
    with open('schedule.txt', 'w') as f:
        for schedule in schedules:
            f.write(schedule)
    print('日程编辑成功。')

if __name__ == '__main__':
    main()

该程序将日程保存在名为`schedule.txt`的文件中，每行为一个字典对象表示一个日程。可以根据需要自行修改文件名和格式。同时，该程序还没有对输入进行合法性检查，如输入日期和时间的格式是否正确、输入的关键字是否存在等，建议在实际应用中添加相应的检查。