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  "contentMarkdown": "# MVC（Model-View-Controller）框架\n\n# MVC（Model-View-Controller）框架\n\n将数据（模型）、用户界面（视图）和业务逻辑（控制器）分开\n\n- **模型**（`BashAction`和`BashActionModel`）定义了数据和与数据相关的操作。\n- **视图**（基于`QListView`和`BashActionDelegate`）负责显示数据。\n- **控制器**（`MainController`）负责协调视图和模型，处理用户的输入。\n\n### 1. 模型（Model）：\n模型代表了数据和业务逻辑。在这个案例中，您的模型将是`BashAction`及其子类。您需要定义一个基类`BashAction`，然后根据需要定义子类。\n\n```python\nclass BashAction:\n    def __init__(self, description):\n        self.description = description\n\n    # ... 其他方法和属性 ...\n\n```\n\n接着，创建一个自定义的模型来管理`BashAction`对象。这个模型负责存储和管理`BashAction`对象的列表，提供添加、删除和更新操作。\n\n```python\nclass BashActionModel(QAbstractListModel):\n    # ... 代码同前面所述 ...\n\n```\n\n### 2. 视图（View）：\n视图负责显示用户界面。在这个案例中，视图是展示`BashAction`对象的列表。您将使用Qt的`QListView`作为视图组件。\n\n```python\nself.listViewActionData = self.ui.findChild(QListView, \"listActionData\")\n\n```\n然后，使用自定义的代理来定义如何绘制每一行：\n```python\nclass BashActionDelegate(QStyledItemDelegate):\n    # ... 代码同前面所述 ...\n\n```\n\n### 3. 控制器（Controller）：\n控制器负责协调模型和视图，处理用户输入，并执行相应的模型更新。在这个案例中，控制器将是管理`BashActionModel`和`BashActionDelegate`的代码。\n\n在您的主控制器中，您需要实例化模型和代理，并将它们设置到视图中。同时，控制器也会处理用户的行为，如添加、删除`BashAction`对象。\n\n```python\nclass MainController:\n    def __init__(self):\n        self.model = BashActionModel()\n        self.delegate = BashActionDelegate()\n        self.view = self.ui.findChild(QListView, \"listActionData\")\n        self.view.setModel(self.model)\n        self.view.setItemDelegate(self.delegate)\n\n    def addBashAction(self, action):\n        # 当用户想要添加新的 BashAction 时调用\n        self.model.addBashAction(action)\n\n    # ... 其他行为如删除、更新等 ...\n\n```\n"
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