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我有一个脚本用于在无序列表 (LI) 中旋转图像。如果页面上只有一个引用类的实例，则脚本可以正常工作。但是，如果我有 2 个旋转组件实例，则第二个实例不会响应。

我认为解决方案是让脚本继续运行，直到第二个旋转器得到它，但我不确定。我尝试了几次修改，但没有成功。当前脚本如下：

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

    // Remove images that only show in main-content
    $('div.rotator ul li.page-only').remove();

    //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, 6000 = change to next image after 6 seconds
    setInterval('rotate()',4000);
}

function rotate() { 
    //Get the first image
    var current = ($('div.rotator ul li.show')?  $('div.rotator ul li.show') : $('div.rotator ul li:first'));

    if ( current.length == 0 ) current = $('div.rotator ul li:first');

    //Get next image, when it reaches the end, rotate it back to the first image
    var next = ((current.next().length) ? ((current.next().hasClass('show')) ? $('div.rotator ul li:first') :current.next()) : $('div.rotator ul li:first'));

    //Un-comment the 3 lines below to get the images in random order

    //var sibs = current.siblings();
    //var rndNum = Math.floor(Math.random() * sibs.length );
    //var next = $( sibs[ rndNum ] );


    //Set the fade in effect for the next image, the show class has higher z-index
    next.css({opacity: 0.0})
    .addClass('show')
    .animate({opacity: 1.0}, 500);

    //Hide the current image
    current.animate({opacity: 0.0}, 1000)
    .removeClass('show');

};
setTimeout(function(){
    $(document).ready(function() {      
        //Load the slideshow
        theRotator();
        $('div.rotator').fadeIn(500);
        $('div.rotator ul li').fadeIn(500); // tweek for IE
    });
}, 500);
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1 回答 1

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您可能需要:first在选择器中替换为:first-child. :first行为类似于.first()并仅选择一个元素，而:first-child行为类似于其 CSS 等效项。

于 2012-10-08T16:25:23.163 回答