请用python写一个日程管理程序

好的，下面是一个简单的日程管理程序的Python代码示例：

import datetime

class Event:
    def __init__(self, name, date, time, description):
        self.name = name
        self.date = date
        self.time = time
        self.description = description

class Schedule:
    def __init__(self):
        self.events = []

    def add_event(self, event):
        self.events.append(event)

    def delete_event(self, event):
        self.events.remove(event)

    def view_events(self):
        for event in self.events:
            print("Name:", event.name)
            print("Date:", event.date)
            print("Time:", event.time)
            print("Description:", event.description)
            print()

schedule = Schedule()

while True:
    print("1. Add event")
    print("2. Delete event")
    print("3. View events")
    print("4. Exit")

    choice = int(input("Enter your choice: "))

    if choice == 1:
        name = input("Enter event name: ")
        date = input("Enter event date (YYYY-MM-DD): ")
        time = input("Enter event time (HH:MM): ")
        description = input("Enter event description: ")
        event = Event(name, date, time, description)
        schedule.add_event(event)
        print("Event added successfully!")
    elif choice == 2:
        name = input("Enter event name to delete: ")
        for event in schedule.events:
            if event.name == name:
                schedule.delete_event(event)
                print("Event deleted successfully!")
                break
        else:
            print("Event not found!")
    elif choice == 3:
        if len(schedule.events) == 0:
            print("No events found!")
        else:
            schedule.view_events()
    elif choice == 4:
        break
    else:
        print("Invalid choice, please try again!")

这个程序使用Event类来表示一个事件，包含名称、日期、时间和描述。Schedule类包含一个事件列表，并提供了添加、删除和查看事件的方法。主循环允许用户选择要执行的操作，直到选择退出。