我正在尝试使用jQuery设计幻灯片,但是我想出了下面的代码,但是,当我运行它时,它只能循环浏览一张幻灯片,然后停止做任何进一步的事情。如何使图片循环显示?

jQuery的:

$(function() {
    setInterval("rotateImages()", 3000);
});
function rotateImages() {
    var CurrentPhoto = $('#slideshow .current');
    var NextPhoto = CurrentPhoto.next();
    if (NextPhoto.length == 0) {
        NextPhoto = $('#slideshow div:first');
    }
    CurrentPhoto.removeClass('current').addClass('previous');
    NextPhoto.css({ opacity: 0.0 }).addClass('current')
         .animate({ opacity: 1.0 }, 1000,
    function() {
         CurrentPhoto.removeClass('previous');
    }
}


HTML:

                <div id="slideshow">
            <div class="current"><img src="image1.jpg" alt="Img" height="382" width="594"> </div>
            <div><img src="image2.jpg" alt="Img" height="382" width="594">             </div>
            <div><img src="image3.jpg" alt="Img" height="382" width="594"></div>
            <div><img src="image4.jpg" alt="Img" height="382" width="594"></div>
            <div><img src="image5.jpg" alt="Img" height="382" width="594"></div>
            </div>


...

CSS:

#slideshow div {
    z-index: 0;
    position: absolute;
    margin: 0px 0px 0px 362px;
}
#slideshow div.previous {
    z-index: 1;
}
#slideshow div.current {
    z-index: 2;
}

最佳答案

您的脚本中有两个错误:


缺少括号(您可能在JavaScript控制台中很容易看到),以关闭animate函数。
NextPhoto == 0不正确。您要检查NextPhoto的长度是否为0,而不是NextPhoto本身。


修复这两个问题,即可解决问题:

$(function() {
    setInterval("rotateImages()", 3000);
});
function rotateImages() {
    var CurrentPhoto = $('#slideshow .current');
    var NextPhoto = CurrentPhoto.next();
    if (NextPhoto.length == 0) {
        NextPhoto = $('#slideshow div:first');
    }
    CurrentPhoto.removeClass('current').addClass('previous');
    NextPhoto.css({ opacity: 0.0 }).addClass('current')
             .animate({ opacity: 1.0 },
                      1000,
                      function() {
                          CurrentPhoto.removeClass('previous');
                      });
}


在此JSFiddle上看到它:http://jsfiddle.net/h7afu5ex/

10-06 00:04
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