nonebot2/website/versioned_docs/version-2.0.0-beta.3/api/plugin/on.md

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2022-05-20 18:21:32 +08:00
---
sidebar_position: 2
description: nonebot.plugin.on 模块
---
# nonebot.plugin.on
本模块定义事件响应器便携定义函数。
## _def_ `on(type='', rule=..., permission=..., *, handlers=..., temp=..., priority=..., block=..., state=...)` {#on}
- **说明**
注册一个基础事件响应器,可自定义类型。
- **参数**
- `type` (str): 事件响应器类型
- `rule` (nonebot.internal.rule.Rule | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应规则
- `permission` (nonebot.internal.permission.Permission | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应权限
- `handlers` (list[(\*Any, \*\*Any) -> Any | [Dependent](../dependencies/index.md#Dependent)] | None): 事件处理函数列表
- `temp` (bool): 是否为临时事件响应器(仅执行一次)
- `priority` (int): 事件响应器优先级
- `block` (bool): 是否阻止事件向更低优先级传递
- `state` (dict[Any, Any] | None): 默认 state
- **返回**
- Type[nonebot.internal.matcher.Matcher]
## _def_ `on_metaevent(rule=..., *, handlers=..., temp=..., priority=..., block=..., state=...)` {#on_metaevent}
- **说明**
注册一个元事件响应器。
- **参数**
- `rule` (nonebot.internal.rule.Rule | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应规则
- `handlers` (list[(\*Any, \*\*Any) -> Any | [Dependent](../dependencies/index.md#Dependent)] | None): 事件处理函数列表
- `temp` (bool): 是否为临时事件响应器(仅执行一次)
- `priority` (int): 事件响应器优先级
- `block` (bool): 是否阻止事件向更低优先级传递
- `state` (dict[Any, Any] | None): 默认 state
- **返回**
- Type[nonebot.internal.matcher.Matcher]
## _def_ `on_message(rule=..., permission=..., *, handlers=..., temp=..., priority=..., block=..., state=...)` {#on_message}
- **说明**
注册一个消息事件响应器。
- **参数**
- `rule` (nonebot.internal.rule.Rule | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应规则
- `permission` (nonebot.internal.permission.Permission | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应权限
- `handlers` (list[(\*Any, \*\*Any) -> Any | [Dependent](../dependencies/index.md#Dependent)] | None): 事件处理函数列表
- `temp` (bool): 是否为临时事件响应器(仅执行一次)
- `priority` (int): 事件响应器优先级
- `block` (bool): 是否阻止事件向更低优先级传递
- `state` (dict[Any, Any] | None): 默认 state
- **返回**
- Type[nonebot.internal.matcher.Matcher]
## _def_ `on_notice(rule=..., *, handlers=..., temp=..., priority=..., block=..., state=...)` {#on_notice}
- **说明**
注册一个通知事件响应器。
- **参数**
- `rule` (nonebot.internal.rule.Rule | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应规则
- `handlers` (list[(\*Any, \*\*Any) -> Any | [Dependent](../dependencies/index.md#Dependent)] | None): 事件处理函数列表
- `temp` (bool): 是否为临时事件响应器(仅执行一次)
- `priority` (int): 事件响应器优先级
- `block` (bool): 是否阻止事件向更低优先级传递
- `state` (dict[Any, Any] | None): 默认 state
- **返回**
- Type[nonebot.internal.matcher.Matcher]
## _def_ `on_request(rule=..., *, handlers=..., temp=..., priority=..., block=..., state=...)` {#on_request}
- **说明**
注册一个请求事件响应器。
- **参数**
- `rule` (nonebot.internal.rule.Rule | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应规则
- `handlers` (list[(\*Any, \*\*Any) -> Any | [Dependent](../dependencies/index.md#Dependent)] | None): 事件处理函数列表
- `temp` (bool): 是否为临时事件响应器(仅执行一次)
- `priority` (int): 事件响应器优先级
- `block` (bool): 是否阻止事件向更低优先级传递
- `state` (dict[Any, Any] | None): 默认 state
- **返回**
- Type[nonebot.internal.matcher.Matcher]
## _def_ `on_startswith(msg, rule=..., ignorecase=..., *, permission=..., handlers=..., temp=..., priority=..., block=..., state=...)` {#on_startswith}
- **说明**
注册一个消息事件响应器,并且当消息的**文本部分**以指定内容开头时响应。
- **参数**
- `msg` (str | tuple[str, ...]): 指定消息开头内容
- `rule` (nonebot.internal.rule.Rule | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应规则
- `ignorecase` (bool): 是否忽略大小写
- `permission` (nonebot.internal.permission.Permission | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应权限
- `handlers` (list[(\*Any, \*\*Any) -> Any | [Dependent](../dependencies/index.md#Dependent)] | None): 事件处理函数列表
- `temp` (bool): 是否为临时事件响应器(仅执行一次)
- `priority` (int): 事件响应器优先级
- `block` (bool): 是否阻止事件向更低优先级传递
- `state` (dict[Any, Any] | None): 默认 state
- **返回**
- Type[nonebot.internal.matcher.Matcher]
## _def_ `on_endswith(msg, rule=..., ignorecase=..., *, permission=..., handlers=..., temp=..., priority=..., block=..., state=...)` {#on_endswith}
- **说明**
注册一个消息事件响应器,并且当消息的**文本部分**以指定内容结尾时响应。
- **参数**
- `msg` (str | tuple[str, ...]): 指定消息结尾内容
- `rule` (nonebot.internal.rule.Rule | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应规则
- `ignorecase` (bool): 是否忽略大小写
- `permission` (nonebot.internal.permission.Permission | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应权限
- `handlers` (list[(\*Any, \*\*Any) -> Any | [Dependent](../dependencies/index.md#Dependent)] | None): 事件处理函数列表
- `temp` (bool): 是否为临时事件响应器(仅执行一次)
- `priority` (int): 事件响应器优先级
- `block` (bool): 是否阻止事件向更低优先级传递
- `state` (dict[Any, Any] | None): 默认 state
- **返回**
- Type[nonebot.internal.matcher.Matcher]
## _def_ `on_fullmatch(msg, rule=..., ignorecase=..., *, permission=..., handlers=..., temp=..., priority=..., block=..., state=...)` {#on_fullmatch}
- **说明**
注册一个消息事件响应器,并且当消息的**文本部分**与指定内容完全一致时响应。
- **参数**
- `msg` (str | tuple[str, ...]): 指定消息全匹配内容
- `rule` (nonebot.internal.rule.Rule | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应规则
- `ignorecase` (bool): 是否忽略大小写
- `permission` (nonebot.internal.permission.Permission | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应权限
- `handlers` (list[(\*Any, \*\*Any) -> Any | [Dependent](../dependencies/index.md#Dependent)] | None): 事件处理函数列表
- `temp` (bool): 是否为临时事件响应器(仅执行一次)
- `priority` (int): 事件响应器优先级
- `block` (bool): 是否阻止事件向更低优先级传递
- `state` (dict[Any, Any] | None): 默认 state
- **返回**
- Type[nonebot.internal.matcher.Matcher]
## _def_ `on_keyword(keywords, rule=..., *, permission=..., handlers=..., temp=..., priority=..., block=..., state=...)` {#on_keyword}
- **说明**
注册一个消息事件响应器,并且当消息纯文本部分包含关键词时响应。
- **参数**
- `keywords` (set[str]): 关键词列表
- `rule` (nonebot.internal.rule.Rule | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应规则
- `permission` (nonebot.internal.permission.Permission | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应权限
- `handlers` (list[(\*Any, \*\*Any) -> Any | [Dependent](../dependencies/index.md#Dependent)] | None): 事件处理函数列表
- `temp` (bool): 是否为临时事件响应器(仅执行一次)
- `priority` (int): 事件响应器优先级
- `block` (bool): 是否阻止事件向更低优先级传递
- `state` (dict[Any, Any] | None): 默认 state
- **返回**
- Type[nonebot.internal.matcher.Matcher]
## _def_ `on_command(cmd, rule=..., aliases=..., *, permission=..., handlers=..., temp=..., priority=..., block=..., state=...)` {#on_command}
- **说明**
注册一个消息事件响应器,并且当消息以指定命令开头时响应。
命令匹配规则参考: `命令形式匹配 <rule.md#command-command>`\_
- **参数**
- `cmd` (str | tuple[str, ...]): 指定命令内容
- `rule` (nonebot.internal.rule.Rule | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应规则
- `aliases` (set[str | tuple[str, ...]] | None): 命令别名
- `permission` (nonebot.internal.permission.Permission | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应权限
- `handlers` (list[(\*Any, \*\*Any) -> Any | [Dependent](../dependencies/index.md#Dependent)] | None): 事件处理函数列表
- `temp` (bool): 是否为临时事件响应器(仅执行一次)
- `priority` (int): 事件响应器优先级
- `block` (bool): 是否阻止事件向更低优先级传递
- `state` (dict[Any, Any] | None): 默认 state
- **返回**
- Type[nonebot.internal.matcher.Matcher]
## _def_ `on_shell_command(cmd, rule=..., aliases=..., parser=..., *, permission=..., handlers=..., temp=..., priority=..., block=..., state=...)` {#on_shell_command}
- **说明**
注册一个支持 `shell_like` 解析参数的命令消息事件响应器。
与普通的 `on_command` 不同的是,在添加 `parser` 参数时, 响应器会自动处理消息。
并将用户输入的原始参数列表保存在 `state["argv"]`, `parser` 处理的参数保存在 `state["args"]`
- **参数**
- `cmd` (str | tuple[str, ...]): 指定命令内容
- `rule` (nonebot.internal.rule.Rule | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应规则
- `aliases` (set[str | tuple[str, ...]] | None): 命令别名
- `parser` ([ArgumentParser](../rule.md#ArgumentParser) | None): `nonebot.rule.ArgumentParser` 对象
- `permission` (nonebot.internal.permission.Permission | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应权限
- `handlers` (list[(\*Any, \*\*Any) -> Any | [Dependent](../dependencies/index.md#Dependent)] | None): 事件处理函数列表
- `temp` (bool): 是否为临时事件响应器(仅执行一次)
- `priority` (int): 事件响应器优先级
- `block` (bool): 是否阻止事件向更低优先级传递
- `state` (dict[Any, Any] | None): 默认 state
- **返回**
- Type[nonebot.internal.matcher.Matcher]
## _def_ `on_regex(pattern, flags=..., rule=..., *, permission=..., handlers=..., temp=..., priority=..., block=..., state=...)` {#on_regex}
- **说明**
注册一个消息事件响应器,并且当消息匹配正则表达式时响应。
命令匹配规则参考: `正则匹配 <rule.md#regex-regex-flags-0>`\_
- **参数**
- `pattern` (str): 正则表达式
- `flags` (int | re.RegexFlag): 正则匹配标志
- `rule` (nonebot.internal.rule.Rule | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应规则
- `permission` (nonebot.internal.permission.Permission | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应权限
- `handlers` (list[(\*Any, \*\*Any) -> Any | [Dependent](../dependencies/index.md#Dependent)] | None): 事件处理函数列表
- `temp` (bool): 是否为临时事件响应器(仅执行一次)
- `priority` (int): 事件响应器优先级
- `block` (bool): 是否阻止事件向更低优先级传递
- `state` (dict[Any, Any] | None): 默认 state
- **返回**
- Type[nonebot.internal.matcher.Matcher]
## _class_ `CommandGroup(cmd, *, rule=..., permission=..., handlers=..., temp=..., priority=..., block=..., state=...)` {#CommandGroup}
- **参数**
- `cmd` (str | tuple[str, ...])
- `rule` (nonebot.internal.rule.Rule | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType)
- `permission` (nonebot.internal.permission.Permission | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType)
- `handlers` (list[(\*Any, \*\*Any) -> Any | [Dependent](../dependencies/index.md#Dependent)] | None)
- `temp` (bool)
- `priority` (int)
- `block` (bool)
- `state` (dict[Any, Any] | None)
### _instance-var_ `basecmd` {#CommandGroup-basecmd}
- **类型:** tuple[str, ...]
- **说明:** 命令前缀
### _instance-var_ `base_kwargs` {#CommandGroup-base_kwargs}
- **类型:** dict[str, Any]
- **说明:** 其他传递给 `on_command` 的参数默认值
### _method_ `command(self, cmd, *, aliases, rule=..., permission=..., handlers=..., temp=..., priority=..., block=..., state=...)` {#CommandGroup-command}
- **说明**
注册一个新的命令。
- **参数**
- `cmd` (str | tuple[str, ...]): 命令前缀
\*\*kwargs: `on_command` 的参数,将会覆盖命令组默认值
- `aliases` (set[str | tuple[str, ...]] | None)
- `rule` (nonebot.internal.rule.Rule | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType)
- `permission` (nonebot.internal.permission.Permission | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType)
- `handlers` (list[(\*Any, \*\*Any) -> Any | [Dependent](../dependencies/index.md#Dependent)] | None)
- `temp` (bool)
- `priority` (int)
- `block` (bool)
- `state` (dict[Any, Any] | None)
- **返回**
- Type[nonebot.internal.matcher.Matcher]
### _method_ `shell_command(self, cmd, *, rule=..., aliases, parser=..., permission=..., handlers=..., temp=..., priority=..., block=..., state=...)` {#CommandGroup-shell_command}
- **说明**
注册一个新的命令。
- **参数**
- `cmd` (str | tuple[str, ...]): 命令前缀
\*\*kwargs: `on_shell_command` 的参数,将会覆盖命令组默认值
- `rule` (nonebot.internal.rule.Rule | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType)
- `aliases` (set[str | tuple[str, ...]] | None)
- `parser` ([ArgumentParser](../rule.md#ArgumentParser) | None)
- `permission` (nonebot.internal.permission.Permission | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType)
- `handlers` (list[(\*Any, \*\*Any) -> Any | [Dependent](../dependencies/index.md#Dependent)] | None)
- `temp` (bool)
- `priority` (int)
- `block` (bool)
- `state` (dict[Any, Any] | None)
- **返回**
- Type[nonebot.internal.matcher.Matcher]
## _class_ `MatcherGroup(*, type=..., rule=..., permission=..., handlers=..., temp=..., priority=..., block=..., state=...)` {#MatcherGroup}
- **参数**
- `type` (str)
- `rule` (nonebot.internal.rule.Rule | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType)
- `permission` (nonebot.internal.permission.Permission | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType)
- `handlers` (list[(\*Any, \*\*Any) -> Any | [Dependent](../dependencies/index.md#Dependent)] | None)
- `temp` (bool)
- `priority` (int)
- `block` (bool)
- `state` (dict[Any, Any] | None)
### _instance-var_ `matchers` {#MatcherGroup-matchers}
- **类型:** list[Type[Matcher]]
- **说明:** 组内事件响应器列表
### _instance-var_ `base_kwargs` {#MatcherGroup-base_kwargs}
- **类型:** dict[str, Any]
- **说明:** 其他传递给 `on` 的参数默认值
### _method_ `on(self, *, type=..., rule=..., permission=..., handlers=..., temp=..., priority=..., block=..., state=...)` {#MatcherGroup-on}
- **说明**
注册一个基础事件响应器,可自定义类型。
- **参数**
- `type` (str): 事件响应器类型
- `rule` (nonebot.internal.rule.Rule | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应规则
- `permission` (nonebot.internal.permission.Permission | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应权限
- `handlers` (list[(\*Any, \*\*Any) -> Any | [Dependent](../dependencies/index.md#Dependent)] | None): 事件处理函数列表
- `temp` (bool): 是否为临时事件响应器(仅执行一次)
- `priority` (int): 事件响应器优先级
- `block` (bool): 是否阻止事件向更低优先级传递
- `state` (dict[Any, Any] | None): 默认 state
- **返回**
- Type[nonebot.internal.matcher.Matcher]
### _method_ `on_command(self, cmd, aliases=..., *, rule=..., permission=..., handlers=..., temp=..., priority=..., block=..., state=...)` {#MatcherGroup-on_command}
- **说明**
注册一个消息事件响应器,并且当消息以指定命令开头时响应。
命令匹配规则参考: `命令形式匹配 <rule.md#command-command>`\_
- **参数**
- `cmd` (str | tuple[str, ...]): 指定命令内容
- `aliases` (set[str | tuple[str, ...]] | None): 命令别名
- `rule` (nonebot.internal.rule.Rule | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应规则
- `permission` (nonebot.internal.permission.Permission | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应权限
- `handlers` (list[(\*Any, \*\*Any) -> Any | [Dependent](../dependencies/index.md#Dependent)] | None): 事件处理函数列表
- `temp` (bool): 是否为临时事件响应器(仅执行一次)
- `priority` (int): 事件响应器优先级
- `block` (bool): 是否阻止事件向更低优先级传递
- `state` (dict[Any, Any] | None): 默认 state
- **返回**
- Type[nonebot.internal.matcher.Matcher]
### _method_ `on_endswith(self, msg, *, ignorecase=..., rule=..., permission=..., handlers=..., temp=..., priority=..., block=..., state=...)` {#MatcherGroup-on_endswith}
- **说明**
注册一个消息事件响应器,并且当消息的**文本部分**以指定内容结尾时响应。
- **参数**
- `msg` (str | tuple[str, ...]): 指定消息结尾内容
- `ignorecase` (bool): 是否忽略大小写
- `rule` (nonebot.internal.rule.Rule | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应规则
- `permission` (nonebot.internal.permission.Permission | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应权限
- `handlers` (list[(\*Any, \*\*Any) -> Any | [Dependent](../dependencies/index.md#Dependent)] | None): 事件处理函数列表
- `temp` (bool): 是否为临时事件响应器(仅执行一次)
- `priority` (int): 事件响应器优先级
- `block` (bool): 是否阻止事件向更低优先级传递
- `state` (dict[Any, Any] | None): 默认 state
- **返回**
- Type[nonebot.internal.matcher.Matcher]
### _method_ `on_fullmatch(self, msg, *, ignorecase=..., rule=..., permission=..., handlers=..., temp=..., priority=..., block=..., state=...)` {#MatcherGroup-on_fullmatch}
- **说明**
注册一个消息事件响应器,并且当消息的**文本部分**与指定内容完全一致时响应。
- **参数**
- `msg` (str | tuple[str, ...]): 指定消息全匹配内容
- `ignorecase` (bool): 是否忽略大小写
- `rule` (nonebot.internal.rule.Rule | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应规则
- `permission` (nonebot.internal.permission.Permission | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应权限
- `handlers` (list[(\*Any, \*\*Any) -> Any | [Dependent](../dependencies/index.md#Dependent)] | None): 事件处理函数列表
- `temp` (bool): 是否为临时事件响应器(仅执行一次)
- `priority` (int): 事件响应器优先级
- `block` (bool): 是否阻止事件向更低优先级传递
- `state` (dict[Any, Any] | None): 默认 state
- **返回**
- Type[nonebot.internal.matcher.Matcher]
### _method_ `on_keyword(self, keywords, *, rule=..., permission=..., handlers=..., temp=..., priority=..., block=..., state=...)` {#MatcherGroup-on_keyword}
- **说明**
注册一个消息事件响应器,并且当消息纯文本部分包含关键词时响应。
- **参数**
- `keywords` (set[str]): 关键词列表
- `rule` (nonebot.internal.rule.Rule | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应规则
- `permission` (nonebot.internal.permission.Permission | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应权限
- `handlers` (list[(\*Any, \*\*Any) -> Any | [Dependent](../dependencies/index.md#Dependent)] | None): 事件处理函数列表
- `temp` (bool): 是否为临时事件响应器(仅执行一次)
- `priority` (int): 事件响应器优先级
- `block` (bool): 是否阻止事件向更低优先级传递
- `state` (dict[Any, Any] | None): 默认 state
- **返回**
- Type[nonebot.internal.matcher.Matcher]
### _method_ `on_message(self, *, rule=..., permission=..., handlers=..., temp=..., priority=..., block=..., state=...)` {#MatcherGroup-on_message}
- **说明**
注册一个消息事件响应器。
- **参数**
- `rule` (nonebot.internal.rule.Rule | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应规则
- `permission` (nonebot.internal.permission.Permission | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应权限
- `handlers` (list[(\*Any, \*\*Any) -> Any | [Dependent](../dependencies/index.md#Dependent)] | None): 事件处理函数列表
- `temp` (bool): 是否为临时事件响应器(仅执行一次)
- `priority` (int): 事件响应器优先级
- `block` (bool): 是否阻止事件向更低优先级传递
- `state` (dict[Any, Any] | None): 默认 state
- **返回**
- Type[nonebot.internal.matcher.Matcher]
### _method_ `on_metaevent(self, *, rule=..., handlers=..., temp=..., priority=..., block=..., state=...)` {#MatcherGroup-on_metaevent}
- **说明**
注册一个元事件响应器。
- **参数**
- `rule` (nonebot.internal.rule.Rule | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应规则
- `handlers` (list[(\*Any, \*\*Any) -> Any | [Dependent](../dependencies/index.md#Dependent)] | None): 事件处理函数列表
- `temp` (bool): 是否为临时事件响应器(仅执行一次)
- `priority` (int): 事件响应器优先级
- `block` (bool): 是否阻止事件向更低优先级传递
- `state` (dict[Any, Any] | None): 默认 state
- **返回**
- Type[nonebot.internal.matcher.Matcher]
### _method_ `on_notice(self, *, rule=..., handlers=..., temp=..., priority=..., block=..., state=...)` {#MatcherGroup-on_notice}
- **说明**
注册一个通知事件响应器。
- **参数**
- `rule` (nonebot.internal.rule.Rule | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应规则
- `handlers` (list[(\*Any, \*\*Any) -> Any | [Dependent](../dependencies/index.md#Dependent)] | None): 事件处理函数列表
- `temp` (bool): 是否为临时事件响应器(仅执行一次)
- `priority` (int): 事件响应器优先级
- `block` (bool): 是否阻止事件向更低优先级传递
- `state` (dict[Any, Any] | None): 默认 state
- **返回**
- Type[nonebot.internal.matcher.Matcher]
### _method_ `on_regex(self, pattern, flags=..., *, rule=..., permission=..., handlers=..., temp=..., priority=..., block=..., state=...)` {#MatcherGroup-on_regex}
- **说明**
注册一个消息事件响应器,并且当消息匹配正则表达式时响应。
命令匹配规则参考: `正则匹配 <rule.md#regex-regex-flags-0>`\_
- **参数**
- `pattern` (str): 正则表达式
- `flags` (int | re.RegexFlag): 正则匹配标志
- `rule` (nonebot.internal.rule.Rule | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应规则
- `permission` (nonebot.internal.permission.Permission | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应权限
- `handlers` (list[(\*Any, \*\*Any) -> Any | [Dependent](../dependencies/index.md#Dependent)] | None): 事件处理函数列表
- `temp` (bool): 是否为临时事件响应器(仅执行一次)
- `priority` (int): 事件响应器优先级
- `block` (bool): 是否阻止事件向更低优先级传递
- `state` (dict[Any, Any] | None): 默认 state
- **返回**
- Type[nonebot.internal.matcher.Matcher]
### _method_ `on_request(self, *, rule=..., handlers=..., temp=..., priority=..., block=..., state=...)` {#MatcherGroup-on_request}
- **说明**
注册一个请求事件响应器。
- **参数**
- `rule` (nonebot.internal.rule.Rule | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应规则
- `handlers` (list[(\*Any, \*\*Any) -> Any | [Dependent](../dependencies/index.md#Dependent)] | None): 事件处理函数列表
- `temp` (bool): 是否为临时事件响应器(仅执行一次)
- `priority` (int): 事件响应器优先级
- `block` (bool): 是否阻止事件向更低优先级传递
- `state` (dict[Any, Any] | None): 默认 state
- **返回**
- Type[nonebot.internal.matcher.Matcher]
### _method_ `on_shell_command(self, cmd, aliases=..., parser=..., *, rule=..., permission=..., handlers=..., temp=..., priority=..., block=..., state=...)` {#MatcherGroup-on_shell_command}
- **说明**
注册一个支持 `shell_like` 解析参数的命令消息事件响应器。
与普通的 `on_command` 不同的是,在添加 `parser` 参数时, 响应器会自动处理消息。
并将用户输入的原始参数列表保存在 `state["argv"]`, `parser` 处理的参数保存在 `state["args"]`
- **参数**
- `cmd` (str | tuple[str, ...]): 指定命令内容
- `aliases` (set[str | tuple[str, ...]] | None): 命令别名
- `parser` ([ArgumentParser](../rule.md#ArgumentParser) | None): `nonebot.rule.ArgumentParser` 对象
- `rule` (nonebot.internal.rule.Rule | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应规则
- `permission` (nonebot.internal.permission.Permission | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应权限
- `handlers` (list[(\*Any, \*\*Any) -> Any | [Dependent](../dependencies/index.md#Dependent)] | None): 事件处理函数列表
- `temp` (bool): 是否为临时事件响应器(仅执行一次)
- `priority` (int): 事件响应器优先级
- `block` (bool): 是否阻止事件向更低优先级传递
- `state` (dict[Any, Any] | None): 默认 state
- **返回**
- Type[nonebot.internal.matcher.Matcher]
### _method_ `on_startswith(self, msg, *, ignorecase=..., rule=..., permission=..., handlers=..., temp=..., priority=..., block=..., state=...)` {#MatcherGroup-on_startswith}
- **说明**
注册一个消息事件响应器,并且当消息的**文本部分**以指定内容开头时响应。
- **参数**
- `msg` (str | tuple[str, ...]): 指定消息开头内容
- `ignorecase` (bool): 是否忽略大小写
- `rule` (nonebot.internal.rule.Rule | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应规则
- `permission` (nonebot.internal.permission.Permission | (\*Any, \*\*Any) -> bool | Awaitable[bool] | NoneType): 事件响应权限
- `handlers` (list[(\*Any, \*\*Any) -> Any | [Dependent](../dependencies/index.md#Dependent)] | None): 事件处理函数列表
- `temp` (bool): 是否为临时事件响应器(仅执行一次)
- `priority` (int): 事件响应器优先级
- `block` (bool): 是否阻止事件向更低优先级传递
- `state` (dict[Any, Any] | None): 默认 state
- **返回**
- Type[nonebot.internal.matcher.Matcher]