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123 lines
1.4 KiB
Markdown
123 lines
1.4 KiB
Markdown
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---
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contentSidebar: true
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sidebarDepth: 0
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---
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# NoneBot.rule 模块
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## 规则
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每个 `Matcher` 拥有一个 `Rule` ，其中是 **异步** `RuleChecker` 的集合，只有当所有 `RuleChecker` 检查结果为 `True` 时继续运行。
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:::tip 提示
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`RuleChecker` 既可以是 async function 也可以是 sync function
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:::
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## _class_ `Rule`
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基类：`object`
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* **说明**
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`Matcher` 规则类，当事件传递时，在 `Matcher` 运行前进行检查。
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* **示例**
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```python
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Rule(async_function) & sync_function
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# 等价于
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from nonebot.utils import run_sync
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Rule(async_function, run_sync(sync_function))
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```
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### `__init__(*checkers)`
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* **参数**
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* `*checkers: Callable[[Bot, Event, dict], Awaitable[bool]]`: **异步** RuleChecker
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### `checkers`
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* **说明**
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存储 `RuleChecker`
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* **类型**
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* `Set[Callable[[Bot, Event, dict], Awaitable[bool]]]`
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### _async_ `__call__(bot, event, state)`
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* **说明**
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检查是否符合所有规则
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* **参数**
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* `bot: Bot`: Bot 对象
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* `event: Event`: Event 对象
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* `state: dict`: 当前 State
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* **返回**
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* `bool`
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## `startswith(msg)`
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* **说明**
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匹配消息开头
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* **参数**
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* `msg: str`: 消息开头字符串
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## `endswith(msg)`
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* **说明**
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匹配消息结尾
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* **参数**
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* `msg: str`: 消息结尾字符串
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