### 返回值:jQuerydblclick([[data],fn])
### 概述
當雙擊元素時，會發生 dblclick 事件。
當鼠標指針停留在元素上方，然后按下并松開鼠標左鍵時，就會發生一次 click。在很短的時間內發生兩次 click，即是一次 double click 事件。提示：如果把 dblclick 和 click 事件應用于同一元素，可能會產生問題。
### 參數
#### **fn**Function*V1.0*
在每一個匹配元素的dblclick事件中綁定的處理函數。
#### **[data],fn**String,Function*V1.4.3*
**data**:dblclick([Data], fn) 可傳入data供函數fn處理。
**fn**:在每一個匹配元素的dblclick事件中綁定的處理函數。
### 示例
#### 描述:
給頁面上每個段落的雙擊事件綁上 "Hello World!" 警告框
##### jQuery 代碼:
~~~
$("p").dblclick( function () { alert("Hello World!"); });
~~~
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