Javascript 元素悬停时的暂停功能

Javascript 元素悬停时的暂停功能,javascript,jquery,Javascript,Jquery,我有一个图像滑块,每5秒更改一次图像,但我希望当我将鼠标悬停在div img上时,滑块会暂停。有没有办法暂停鼠标悬停时的“theRotator”功能,然后在鼠标移出div后重新启动它?谢谢大家 function theRotator() { //Set the opacity of all images to 0 $('div.rotator ul li').css({opacity: 0.0}); //Get the first image and display i

我有一个图像滑块,每5秒更改一次图像,但我希望当我将鼠标悬停在div img上时,滑块会暂停。有没有办法暂停鼠标悬停时的“theRotator”功能,然后在鼠标移出div后重新启动它?谢谢大家

function theRotator() {
    //Set the opacity of all images to 0
    $('div.rotator ul li').css({opacity: 0.0});

    //Get the first image and display it (gets set to full opacity)
    $('div.rotator ul li:first').css({opacity: 1.0});

    //Call the rotator function to run the slideshow,

    setInterval('rotate()',5000);

}

$(document).ready(function() {      
    //Load the slideshow
    theRotator();
    $('div.rotator').fadeIn(1000);
    $('div.rotator ul li').fadeIn(1000); // tweek for IE
});

您需要检索由
setInterval
函数返回的间隔句柄。另外,我使用了
mouseenter
mouseleave
,因为它们更适合您想要的功能

function theRotator() {
    //Set the opacity of all images to 0
    $('div.rotator ul li').css({opacity: 0.0});

    //Get the first image and display it (gets set to full opacity)
    $('div.rotator ul li:first').css({opacity: 1.0});

    //Call the rotator function to run the slideshow,

    window.rotatorInterval = setInterval(rotate,5000);
}

$(document).ready(function() {

    //Load the slideshow
    theRotator();

    $('div img').mouseenter(function(){
         clearInterval(window.rotatorInterval);
    }).mouseleave(function() {
         window.rotatorInterval = setInterval(rotate, 5000);
    });

    $('div.rotator').fadeIn(1000);
    $('div.rotator ul li').fadeIn(1000); // tweek for IE
});

你可以这样做

var rotate = true;

$('img').on({
    mouseenter: function() {
        rotate = false;
    },
    mouseleave: function() {
        rotate = true;
    }
});​

并在
rotate()
函数中选中该标志,只需清除鼠标上方的超时,然后在鼠标上重新创建超时,如下所示:

var interval;

function theRotator() {
    $('div.rotator ul li').css({opacity: 0.0});
    $('div.rotator ul li:first').css({opacity: 1.0});
    interval = setInterval(rotate, 5000);
}

$(document).ready(function() {
    theRotator();
    $('div.rotator').fadeIn(1000);
    $('div.rotator ul li').fadeIn(1000); // tweek for IE

    $('div.rotator ul li').hover(function() {
        clearInterval(interval);
    },
    function() {
        interval = setInterval(rotate, 5000);
    });
});

出于某种原因,我想你会运行两次,为什么?我认为您应该做一些类似思考的操作,运行.delay()->在jquery.com上阅读相关内容