使用Python OOP创建ToDoList

class Task:
    def __init__(self, description, due_date):
        self.description = description
        self.due_date = due_date
        self.completed = False

    def mark_as_completed(self):
        self.completed = True

    def __str__(self):
        status = "Completed" if self.completed else "Not Completed"
        return f"Description: {self.description}\nDue Date: {self.due_date}\nStatus: {status}"


class ToDoList:
    def __init__(self):
        self.tasks = []

    def add_task(self, task):
        self.tasks.append(task)

    def remove_task(self, task):
        self.tasks.remove(task)

    def get_all_tasks(self):
        return self.tasks

    def get_completed_tasks(self):
        return [task for task in self.tasks if task.completed]

    def get_incomplete_tasks(self):
        return [task for task in self.tasks if not task.completed]


# 创建任务
task1 = Task("Finish report", "2022-12-31")
task2 = Task("Buy groceries", "2022-12-25")
task3 = Task("Call John", "2022-12-30")

# 创建ToDoList实例
todo_list = ToDoList()

# 添加任务到ToDoList
todo_list.add_task(task1)
todo_list.add_task(task2)
todo_list.add_task(task3)

# 标记任务为已完成
task1.mark_as_completed()

# 打印所有任务
print("All Tasks:")
for task in todo_list.get_all_tasks():
    print(task)

# 打印已完成任务
print("\nCompleted Tasks:")
for task in todo_list.get_completed_tasks():
    print(task)

# 打印未完成任务
print("\nIncomplete Tasks:")
for task in todo_list.get_incomplete_tasks():
    print(task)