JS实现头条新闻的经典轮播图效果示例
程序员文章站
2023-12-09 21:16:33
本文实例讲述了js实现头条新闻的经典轮播图效果。分享给大家供大家参考,具体如下:
本文实例讲述了js实现头条新闻的经典轮播图效果。分享给大家供大家参考,具体如下:
<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0"> <meta http-equiv="x-ua-compatible" content="ie=edge"> <title>document</title> <style> *{ margin:0; padding:0; list-style: none; } .box{ width: 665px; height: 362px; border: solid; margin: 100px auto; position:relative ; } .left{ width: 50px; height: 50px; border: solid white; border-radius: 50%; position: absolute; line-height: 50px; text-align: center; font-size: 50px; left:0px; top:180px; cursor: pointer; color: white; } .right { width: 50px; height: 50px; border: solid white; border-radius: 50%; position: absolute; line-height: 50px; text-align: center; font-size: 50px; right: 0px; top: 180px; cursor: pointer; color: white; } ul{ width: 400px; height: 50px; margin:307px 188px; position: absolute; left:30px; top:24px; } li{ width: 30px; height: 30px; border: solid 1px white; border-radius: 50%; float: left; cursor: pointer; line-height: 30px; text-align: center; color: white; } img{ display: none; width: 665px; height: 362px; } .act{display: block; } .active{ background: black; } </style> </head> <body> <div class="box" id="box"> <img src="img/1.jpg" alt="" class="act"> <img src="img/2.jpg" alt=""> <img src="img/3.jpg" alt=""> <img src="img/4.jpg" alt=""> <img src="img/5.jpg" alt=""> <img src="img/6.jpg" alt=""> <img src="img/7.jpg" alt=""> <img src="img/8.jpg" alt=""> <div class="left" id="left"> < </div> <div class="right" id="right"> > </div> <ul> <li class="active">1</li> <li>2</li> <li>3</li> <li>4</li> <li>5</li> <li>6</li> <li>7</li> <li>8</li> </ul> </div> <script> window.onload=function () { var arrli=document.getelementsbytagname("li"); var arrimg=document.getelementsbytagname("img"); var oleft=document.getelementbyid("left"); var oright=document.getelementbyid("right"); var obox=document.getelementbyid("box"); var num=0; f=setinterval(abc,1000); obox.onmouseover=function () { clearinterval(f) } obox.onmouseout=function () { f=setinterval(abc,1000); } for(x=0;x<arrli.length;x++) { arrli[x].index=x; arrli[x].onmouseover=function () { for(j=0;j<arrli.length;j++){ arrli[j].classname=""; arrimg[j].classname=""; } this.classname="active"; arrimg[this.index].classname="act"; } } oleft.onclick=function () { num=num-1; if(num<0){ num=arrimg.length-1 } for(j=0;j<arrimg.length;j++){ arrimg[j].classname=""; arrli[j].classname=""; }arrimg[num].classname="act"; arrli[num].classname="active"; } oright.onclick=abc function abc() { num=num+1; if(num>arrimg.length-1){ num=0 } for(j=0;j<arrimg.length;j++){ arrimg[j].classname=""; arrli[j].classname=""; }arrimg[num].classname="act"; arrli[num].classname="active"; } } </script> </body> </html>
本机测试运行效果如下:
更多关于javascript相关内容感兴趣的读者可查看本站专题:《javascript图片操作技巧大全》、《javascript切换特效与技巧总结》、《javascript运动效果与技巧汇总》、《javascript动画特效与技巧汇总》、《javascript错误与调试技巧总结》、《javascript数据结构与算法技巧总结》、《javascript遍历算法与技巧总结》及《javascript数学运算用法总结》
希望本文所述对大家javascript程序设计有所帮助。