### 返回值:jQueryfocusout([data],fn)
### 概述
在每一個匹配元素的focusout事件中綁定一個處理函數。
當一個元素，或者其內部任何一個元素失去焦點的時候會觸發這個事件。這跟blur事件區別在于，他可以在父元素上檢測子元素失去焦點的情況。
### 參數
#### **fn**Function*V1.0*
在每一個匹配元素的focusout事件中綁定的處理函數。
#### **[data],fn**String,Function*V1.4.3*
**data**:focusout([Data], fn) 可傳入data供函數fn處理。
**fn**:在每一個匹配元素的focusout事件中綁定的處理函數。
### 示例
#### 描述:
失去焦點后會觸發動畫:
##### HTML 代碼:
~~~
<p><input type="text" /> <span>focusout fire</span></p>
<p><input type="password" /> <span>focusout fire</span></p>
~~~
##### jQuery 代碼:
~~~
$("p").focusout(function() {
$(this).find("span").css('display','inline').fadeOut(1000);
});
~~~
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