基于jQuery的左右带箭头的图片浏览控制插件.zip资源-CSDN文库

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68 浏览量 2022-11-10 00:26:10 上传评论收藏 107KB ZIP 举报

在前端开发中，jQuery是一个非常流行且功能丰富的JavaScript库，它极大地简化了DOM操作、事件处理、动画制作和Ajax交互。本项目“基于jQuery的左右带箭头的图片浏览控制插件”旨在提供一个优雅的方式来展示图片，允许用户通过点击左右箭头来浏览一系列图片。这个插件适用于网页中的产品展示、画廊或者任何需要图片滑动效果的场景。我们来看jQuery的基本概念。jQuery由John Resig于2006年创建，它的核心理念是"Write Less, Do More"，即用更少的代码实现更多的功能。jQuery通过选择器机制可以方便地选取DOM元素，然后对这些元素进行操作。例如，`$("#id")`可以选取ID为"id"的元素，`$(".class")`则可以选取所有类名为"class"的元素。接下来，我们关注这个插件的核心功能——图片浏览控制。左右箭头通常用于导航，用户可以通过点击它们来切换前后图片。在jQuery中，我们可以使用事件绑定来响应用户的点击行为。例如，`$(".left-arrow").click(function() {...})`会监听左箭头的点击事件，并在用户点击时执行相应的函数。该插件可能使用了CSS（层叠样式表）来定义箭头的样式和图片容器的布局。CSS允许开发者控制元素的大小、颜色、位置等属性，使得界面更加美观。例如，`float:left;`可以使元素向左浮动，`transition:all 0.5s;`则可以添加平滑的过渡效果。在图片切换的过程中，JavaScript和jQuery起到了关键作用。可能使用了数组存储图片集合，然后根据当前显示的图片索引来决定显示哪一张图片。例如，`var images = ["img1.jpg", "img2.jpg", "img3.jpg"];`，并维护一个变量`currentIndex`表示当前图片的索引。当用户点击左箭头时，`currentIndex`减一，如果已到达数组开头，则回到数组末尾，实现循环浏览。反之，点击右箭头时，`currentIndex`加一，若超过数组长度，则返回数组开头。通过修改`#image-container`元素的`src`属性，可以实现图片的切换，如`$("#image-container").attr("src", images[currentIndex]);`。此外，为了实现平滑的过渡效果，可能利用了jQuery的动画方法，如`fadeIn()`和`fadeOut()`，或者通过改变CSS的`opacity`属性来实现淡入淡出效果。例如，当切换图片时，旧图片淡出，新图片淡入。这个基于jQuery的图片浏览插件结合了前端开发中的基础技术，包括DOM操作、事件处理、CSS样式和动画效果。开发者通过封装这些功能，提供了易于使用的API供其他网页开发者集成到他们的项目中，从而提升用户体验，使图片浏览变得更加互动和流畅。

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基于jQuery的左右带箭头的图片浏览控制插件.zip （11个子文件）

132692135024065668

likecs.com_132692135040701615

img

bg_body.jpg 400B

img_slide_03.jpg 13KB

img_slide_04.jpg 8KB

img_slide_01.jpg 7KB

bg_pagecontainer_h1.jpg 13KB

bg_slideshow.jpg 4KB

control_right.jpg 888B

control_left.jpg 881B

img_slide_02.jpg 12KB

index.html 8KB

jquery-1.4.2.js 160KB

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Slick jQuery Slidehow: Demo by http://www.jb51.net</title> <style type="text/css">  </style> <script type="text/javascript" src="jquery-1.4.2.js"></script> <script type="text/javascript"> $(document).ready(function(){ var currentPosition = 0; var slideWidth = 560; var slides = $('.slide'); var numberOfSlides = slides.length; // Remove scrollbar in JS $('#slidesContainer').css('overflow', 'hidden'); // Wrap all .slides with #slideInner div slides .wrapAll('<div id="slideInner"></div>') // Float left to display horizontally, readjust .slides width .css({ 'float' : 'left', 'width' : slideWidth }); // Set #slideInner width equal to total width of all slides $('#slideInner').css('width', slideWidth * numberOfSlides); // Insert controls in the DOM $('#slideshow') .prepend('<span class="control" id="leftControl">Clicking moves left</span>') .append('<span class="control" id="rightControl">Clicking moves right</span>'); // Hide left arrow control on first load manageControls(currentPosition); // Create event listeners for .controls clicks $('.control') .bind('click', function(){ // Determine new position currentPosition = ($(this).attr('id')=='rightControl') ? currentPosition+1 : currentPosition-1; // Hide / show controls manageControls(currentPosition); // Move slideInner using margin-left $('#slideInner').animate({ 'marginLeft' : slideWidth*(-currentPosition) }); }); // manageControls: Hides and Shows controls depending on currentPosition function manageControls(position){ // Hide left arrow if position is first slide if(position==0){ $('#leftControl').hide() } else{ $('#leftControl').show() } // Hide right arrow if position is last slide if(position==numberOfSlides-1){ $('#rightControl').hide() } else{ $('#rightControl').show() } } }); </script> </head> <body> <div id="pageContainer"> <h1><a href="http://sixrevisions.com/tutorials/javascript_tutorial/create-a-slick-and-accessible-slideshow-using-jquery/">Slick Slideshow using jQuery</a></h1>  <div id="slideshow"> <div id="slidesContainer"> <div class="slide"> <h2>Web Development Tutorial</h2> <p><a href="http://sixrevisions.com/tutorials/web-development-tutorials/using-xampp-for-local-wordpress-theme-development/"><img src="img/img_slide_01.jpg" alt="An image that says Install X A M P P for wordpress." width="215" height="145" /></a>If you're into developing web apps, you should check out the tutorial called "<a href="http://sixrevisions.com/tutorials/web-development-tutorials/using-xampp-for-local-wordpress-theme-development/">Using XAMPP for Local WordPress Theme Development</a>" which shows you how to set up a local testing server for developing PHP/Perl based applications locally on your computer. The example also shows you how to set up WordPress locally!</p> </div> <div class="slide"> <h2>Grunge Brushes, Anyone?</h2> <p><a href="http://sixrevisions.com/freebies/brushes/sr-grunge-free-high-resolution-photoshop-grunge-brushes/"><img src="img/img_slide_02.jpg" width="215" height="145" alt="A thumbnail image that says S R grunge photoshop brushes 6 high resolution grunge brushes by six revisions." /></a>In this layout, I used <a href="http://sixrevisions.com/freebies/brushes/sr-grunge-free-high-resolution-photoshop-grunge-brushes/">SR Grunge</a>, which is a free set of high-resolution Photoshop brushes you can download here on Six Revisions.</p> <p> </div> <div class="slide"> <h2>How About Some Awesome Grunge Textures?</h2> <p><a href="http://sixrevisions.com/freebies/textures/grunge-extreme-15-high-resolution-grunge-textures/"><img src="img/img_slide_03.jpg" width="215" height="145" alt="A thumbnail image that says grunge extreme 15 free high resolution grunge textures six revisions." /></a>The texture used in this web page is from the Grunge Extreme Textures freebie set by JC Parmley released here on Six Revisions.</p> <p>You can head over to the <a href="http://sixrevisions.com/freebies/textures/grunge-extreme-15-high-resolution-grunge-textures/">Grunge Extreme</a> page to download the texture set or check out Six Revisions' <a href="http://sixrevisions.com/category/freebies/">freebie section</a> for even more goodies!</p> </div> <div class="slide"> <h2>'Tis the End, My Friend.</h2> <p><a href="http://sixrevisions.com/tutorials/photoshop-tutorials/how-to-create-a-slick-and-clean-button-in-photoshop/"><img src="img/img_slide_04.jpg" width="215" height="145" alt="Thumbnail image that says sleek button using photoshop that links to a Photoshop tutoril." /></a>This is the last slide. Hit the left arrow control to go back to the other slides.</p> <p>Alternatively, you may want to check out the tutorial on how to create a simple and cool button in Photoshop called "<a href="http://sixrevisions.com/tutorials/photoshop-tutorials/how-to-create-a-slick-and-clean-button-in-photoshop/">How to Create a Slick and Clean Button in Photoshop</a>" which was inspired by the <a href="http://www.campaignmonitor.com/designer/?utm_source=sixrevisions&utm_medium=banner&utm_term=2&utm_content=0003&utm_campaign=Apr09Banners">Campaign Monitor</a> web interface.</p> </div> </div> </div>  <div id="footer"> <p><a href="#">Create a Slick and Accessible Slideshow Using jQuery by Jacob Gube</a> (<a href="http://sixrevisions.com/">Six Revisions</a>)</p> </div> </div> </body> </html>

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