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返回值:jQuerymouseover([[data],fn])

概述

当鼠标指针位于元素上方时,会发生 mouseover 事件。

该事件大多数时候会与 mouseout 事件一起使用。

注释:与 mouseenter 事件不同,不论鼠标指针穿过被选元素或其子元素,都会触发 mouseover 事件。只有在鼠标指针穿过被选元素时,才会触发 mouseenter 事件。请看下面例子的演示。

参数

fnFunctionV1.0

在每一个匹配元素的mouseover事件中绑定的处理函数。

[data],fnString,FunctionV1.4.3

data:mouseover([Data], fn) 可传入data供函数fn处理。

fn:在每一个匹配元素的mouseover事件中绑定的处理函数。

示例

描述:

当鼠标指针位于元素上方时时,改变元素的背景色:

jQuery 代码:
$("p").mouseover(function(){
  $("p").css("background-color","yellow");
});
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