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freeCodeCamp/guide/chinese/jquery/jquery-mousedown-method/index.md
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---
title: Mousedown Method
localeTitle: Mousedown方法
---
# Mousedown方法
按下鼠标左键时会发生mousedown事件。 要触发所选元素的mousedown事件请使用以下语法 `$(selector).mousedown();`
但是大多数情况下mousedown方法与附加到mousedown事件的函数一起使用。 这是语法: `$(selector).mousedown(function);` 例如:
```
$(#example).mousedown(function(){
alert("Example was clicked");
});
```
当单击#example时,该代码将使页面警报“单击示例”。
### 更多信息
更多信息可以在[这里](https://www.w3schools.com/jquery/event_mousedown.asp)找到。