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LiteyukiBot/docs/en/dev/api/message/on.md
2024-08-21 17:59:21 +08:00

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---
title: liteyuki.message.on
order: 1
icon: laptop-code
category: API
---
### ***def*** `on_message(rule: Rule, priority: int, block: bool) -> Matcher`
<details>
<summary>源代码</summary>
```python
def on_message(rule: Rule=Rule(), priority: int=0, block: bool=True) -> Matcher:
matcher = Matcher(rule, priority, block)
for i, m in enumerate(_matcher_list):
if m.priority < matcher.priority:
_matcher_list.insert(i, matcher)
break
else:
_matcher_list.append(matcher)
return matcher
```
</details>
### ***var*** `current_priority = -1`
### ***var*** `matcher = Matcher(rule, priority, block)`
### ***var*** `current_priority = matcher.priority`