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hover([over,]out)
概述
一个模仿悬停事件（鼠标移动到一个对象上面及移出这个对象）的方法。这是一个自定义的方法，它为频繁使用的任务提供了一种“保持在其中”的状态。
当鼠标移动到一个匹配的元素上面时，会触发指定的第一个函数。当鼠标移出这个元素时，会触发指定的第二个函数。而且，会伴随着对鼠标是否仍然处在特定元素中的检测（例如，处在div中的图像），如果是，则会继续保持“悬停”状态，而不触发移出事件（修正了使用mouseout事件的一个常见错误）。
参数
over,outFunction,FunctionV1.0
over:鼠标移到元素上要触发的函数
out:鼠标移出元素要触发的函数
outObjectV1.4
当鼠标移到元素上或移出元素时触发执行的事件函数
示例
over,out 描述:
鼠标悬停的表格加上特定的类
jQuery 代码:
$("td").hover(
function () {
$(this).addClass("hover");
},
function () {
$(this).removeClass("hover");
}
);out 描述:
hover()方法通过绑定变量"handlerInOut"来切换方法。
jQuery 代码:
$("td").bind("mouseenter mouseleave",handlerInOut);
$("td").hover(handlerInOut);